Dampak最新文献

{"title":"Analisis Respon Siswa SMA di Kabupaten Situbondo terhadap Potensi Pemanfaatan Sampah Plastik sebagai Sumber Energi Listrik Rumahan","authors":"Putri Sovi Damayanti, Sudarti Sudarti","doi":"10.25077/dampak.18.2.37-43.2021","DOIUrl":"https://doi.org/10.25077/dampak.18.2.37-43.2021","url":null,"abstract":"Plastic waste is one type of waste that is very difficult to decipher in the environment so as to reduce it and not pollute the environment many ways that have been done, such as 3R (Reduce, Reuse, Recycle) and currently many are utilizing it to become an alternative energy source. The purpose of writing this article is to find out the extent of the response of high school students in Situbondo district to the potential utilization of plastic waste as a source of home electrical energy according to the title of this article. The research method used is descriptive quantitative with data collection method using questionnaire method (questionnaire) through google form on high school students in Situbondo district. And the results from 87 high school students that plastic waste in Situbondo district is adequate to be used as a source of electrical energy and they are interested in learning it, but they are not sure if plastic waste as a source of small-scale electrical energy (home) can be applied in Situbondo in the future. Keywords: plastic waste, energy sources, home electricity ABSTRAK Sampah plastik merupakan salah satu jenis sampah yang sangat sulit diurai di lingkungan sehingga menguranginya dan tidak mencemari lingkungan banyak cara yang telah dilakukan, seperti 3R (Reduce, Reuse, Recycle) dan saat ini banyak yang memanfaatkannya menjadi sumber energi alternatif. Tujuan penulisan artikel ini adalah untuk mengetahui sejauh mana tanggapan siswa SMA di Kabupaten Situbondo terhadap potensi pemanfaatan sampah plastik sebagai sumber energi listrik rumah sesuai dengan judul artikel ini. Metode penelitian yang digunakan adalah deskriptif kuantitatif dengan metode pengumpulan data menggunakan metode kuesioner (angket) melalui google form kepada siswa SMA di Kabupaten Situbondo. Dan hasil dari 87 siswa SMA tersebut adalah sampah plastik di Kabupaten Situbondo cukup untuk digunakan sebagai sumber energi listrik dan mereka tertarik untuk mempelajarinya, tetapi mereka tidak yakin apakah sampah plastik sebagai sumber energi listrik skala kecil (rumah) dapat diterapkan di Situbondo di masa depan. Kata Kunci: sampah plastik, sumber energi, listrik rumah","PeriodicalId":488286,"journal":{"name":"Dampak","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135899427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pemanfaatan Limbah Fly Ash dan Spent Bleaching Earth sebagai Substitusi Semen pada Beton Mutu Normal Skala Produksi","authors":"Otto Lambok Raya Nababan, Dewi Agustina Iryani, Endro Prasetyo Wahono, Rinawati Rinawati","doi":"10.25077/dampak.20.2.93-99.2023","DOIUrl":"https://doi.org/10.25077/dampak.20.2.93-99.2023","url":null,"abstract":"In the era of industry and technology in Indonesia, environmental problems due to waste are problems that require wise handling. Fly Ash (FA) waste from PLTU activities and Spent Bleaching Earth (SBE) waste resulting from the palm oil production process are very abundant, thus polluting the environment. Indonesia is currently prioritizing physical infrastructure development, which aims to improve connectivity and encourage economic growth in every sector. The development process that occurs increases the use of concrete. Concrete has a tremendous impact on the environment because most of its composition is cement. The use of cement in the manufacture of concrete results in the emission of large amounts of CO2 gas into the atmosphere, which causes an increase in global warming. The use of concrete can have a lower environmental impact if the use of cement is reduced as much as possible by adding a mixture of FA and SBE wastes. This research will utilize FA and SBE waste in the manufacture of normal concrete production weights and aim to determine the optimal composition of FA and SBE waste that is economically and environmentally feasible. The results of the research by applying FA and SBE substitutions show that FA is better than bleaching earth in the resulting compressive strength. The optimal composition of FA as a substitute for cement to achieve the quality of the planned concrete is 15%, while the composition of SBE as a substitute for cement is 10%. Keywords: concrete, Fly Ash (FA), Spent bleaching earth (SBE), concrete compressive strength ABSTRAK In the era of industry and technology in Indonesia, environmental problems due to waste are problems that require wise handling. Fly Ash (FA) waste from PLTU activities and Spent Bleaching Earth (SBE) waste resulting from the palm oil production process are very abundant, thus polluting the environment. Indonesia is currently prioritizing physical infrastructure development, which aims to improve connectivity and encourage economic growth in every sector. The development process that occurs increases the use of concrete. Concrete has a tremendous impact on the environment because most of its composition is cement. The use of cement in the manufacture of concrete results in the emission of large amounts of CO2 gas into the atmosphere, which causes an increase in global warming. The use of concrete can have a lower environmental impact if the use of cement is reduced as much as possible by adding a mixture of FA and SBE wastes. This research will utilize FA and SBE waste in the manufacture of normal concrete production weights and aim to determine the optimal composition of FA and SBE waste that is economically and environmentally feasible. The results of the research by applying FA and SBE substitutions show that FA is better than bleaching earth in the resulting compressive strength. The optimal composition of FA as a substitute for cement to achieve the quality of the planned concrete is 15%, w","PeriodicalId":488286,"journal":{"name":"Dampak","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135314290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Efektivitas Metode Multi Soil Layering (MSL) dalam Penurunan Total Koliform Limbah Cair Domestik","authors":"Aisha Shakira, Ama Mullah, Abd Mujahid Hamdan, Syafrina Sari Lubis","doi":"10.25077/dampak.20.2.83-92.2023","DOIUrl":"https://doi.org/10.25077/dampak.20.2.83-92.2023","url":null,"abstract":"This research employs Multi Soil Layering (MSL), an environmentally friendly technology, to remove coliform bacteria contaminants from wastewater using a novel alternative medium. The purpose of this study is to evaluate the efficacy of the MSL method employing bio rings in reducing pollutant parameters in domestic wastewater, particularly total coliform. This study utilized Hydraulic Loading Rate (HLR) variations of 23.80 L/m2/hour, 7.14 L/m2/hour, and 3.40 L/m2/hour, as well as Hydraulic Retention Time (HRT) variations of 4, 6, 8, 10, and 12 hours. The results of domestic wastewater treatment using the MSL method using HLR variations on total coliform from 1.89 105 MPN/100mL to 6.0 102 MPN/100mL, the total colony parameter from 5.95 106 CFU/mL to 3.6 105 CFU/mL, the chemical oxygen demand parameter value of 53 mg/L with an effectiveness of 98.6%, the total suspended solid parameter is valued at 25 mg/L with reduction effectiveness of 98.6% and the pH value changes to 7.3 at the HLR variation of 3.40 L/m2/hour. As for using the HRT variation for 12 hours the total coliform from 1.16 104 MPN/100mL to 9 102 MPN/100mL, the total colony parameter from 4.91 106 CFU/mL to 3.0 105 CFU/mL, the chemical oxygen demand parameter was 92 mg/L with its effectiveness 99%, the total suspended solid parameter is 87 mg/L with reduction effectiveness of 67% and the potential of hydrogen value changes to 7.6. Therefore, the MSL method employing bio rings can be used as a new option for domestic effluent treatment. Keywords: domestic wastewater, coliform total, Multi Soil Layering (MSL) ABSTRAK Penelitian ini menggunakan Multi Soil Layering (MSL), sebuah teknologi ramah lingkungan, untuk menghilangkan kontaminan bakteri coliform dari air limbah menggunakan media alternatif baru. Tujuan dari penelitian ini adalah untuk mengevaluasi efikasi metode MSL dengan bioring dalam menurunkan parameter polutan dalam air limbah domestik, khususnya total coliform. Penelitian ini memanfaatkan variasi Hydraulic Loading Rate (HLR) 23,80 L/m2/jam, 7,14 L/m2/jam, dan 3,40 L/m2/jam, serta variasi Hydraulic Retention Time (HRT) 4, 6, 8, 10, dan 12 jam. Hasil pengolahan air limbah domestik dengan metode MSL menggunakan variasi HLR pada total coliform dari 1,89 × 105 MPN/100mL menjadi 6,0 × 102 MPN/100 mL, parameter total koloni dari 5,95 × 106 CFU/mL menjadi 3,6 × 105 CFU/mL, nilai parameter kebutuhan oksigen kimia 53 mg/L dengan efektivitas 98,6%, parameter total padatan tersuspensi senilai 25 mg/L dengan efektivitas reduksi 98,6% dan nilai pH berubah menjadi 7,3 pada variasi HLR 3,40 L/m2/jam. Sedangkan untuk menggunakan variasi HRT selama 12 jam total coliform dari 1,16 × 104 MPN/100mL menjadi 9 × 102 MPN/100mL, parameter total koloni dari 4,91 × 106 CFU/mL menjadi 3,0 × 105 CFU/mL, kebutuhan oksigen kimia parameter 92 mg/L dengan efektivitas 99%, parameter total padatan tersuspensi 87 mg/L dengan efektivitas reduksi 67% dan nilai potensial hidrogen berubah menjadi 7,6. Oleh karena it","PeriodicalId":488286,"journal":{"name":"Dampak","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135100591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pengembangan Jaringan Distribusi Air Minum di Bagian Selatan Kabupaten Banyuwangi","authors":"Noverta Astri Trisnanta, Ririn Endah Badrian, Audiananti Meganandi Kartini, Yeny Dhokhikah","doi":"10.25077/dampak.20.2.74-82.2023","DOIUrl":"https://doi.org/10.25077/dampak.20.2.74-82.2023","url":null,"abstract":"The Tegaldlimo branch of Banyuwangi water supply company serves 3 villages and 28 villages in the southern part of Banyuwangi district are not yet served by piped networks. This study aims to analyze the development of piped distribution networks in the short-term, medium-term term, and long-term Southern Banyuwangi Regency. The geometry method was carried out for population projection in 2042 that applied as the basis of average water demand. The calculation of water demand was simulated using EPANET 2.2, with maps of distribution pipelines to illustrate the hydraulic simulation of pipelines. The development of drinking water distribution networks in The Southern Banyuwangi Regency was divided into four stages according to the priority, namely Siliragung, Pesanggaran, Bangorejo, and Purwoharjo district. The development of the drinking pipeline network was carried out by using HDPE in diameters of 200, 180, 160, 140, 125, 110, 90, 75, and 63 mm and pump type of Grundfos UPS Series 200 with a maximum head of 18 m and a maximum flow of 70 cubic meter per hour. Keywords: development, SPAM, PUDAM ABSTRAK PDAM Banyuwangi cabang Tegaldlimo melayani 3 desa dan 28 desa di Kabupaten Banyuwangi bagian selatan belum terlayani jaringan perpipaan. Penelitian ini bertujuan untuk menganalisis perkembangan jaringan distribusi perpipaan dalam jangka pendek, jangka menengah, dan jangka panjang di Kabupaten Banyuwangi Bagian Selatan. Metode geometri dilakukan untuk proyeksi penduduk tahun 2042 yang digunakan sebagai dasar kebutuhan air rata-rata. Perhitungan kebutuhan air disimulasikan menggunakan EPANET 2.2, dengan peta jaringan pipa distribusi untuk menggambarkan simulasi hidrolik jaringan pipa. Pembangunan jaringan distribusi air minum di Kabupaten Banyuwangi Selatan dibagi menjadi empat tahap sesuai prioritasnya, yaitu Kecamatan Siliragung, Pesanggaran, Bangorejo, dan Purwoharjo. Pengembangan jaringan pipa minum dilakukan dengan menggunakan HDPE diameter 200, 180, 160, 140, 125, 110, 90, 75 dan 63 mm dan pompa tipe Grundfos UPS Series 200 dengan head maksimum 18 m dan aliran maksimum 70 meter kubik per jam. Kata kunci: pengembangan, SPAM, PUDAM","PeriodicalId":488286,"journal":{"name":"Dampak","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135314289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pengendalian Air Limpasan dengan Ecodrainage untuk Kawasan Perumahan Podo Asih","authors":"Arifandy Setiawan, Anie Yulistyorini, Titi Rahayuningsih, Gilang Idfi","doi":"10.25077/dampak.20.2.63-73.2023","DOIUrl":"https://doi.org/10.25077/dampak.20.2.63-73.2023","url":null,"abstract":"Podo Asih Housing is a residential area located in Beji District, Pasuruan Regency, located at 7°34'23.21” S and 112°44'00.39” E housing area of 50,000 m2 or 5 hectares, this relatively densely populated housing is still frequent. There is a flood that can disrupt the activities of residential residents. One alternative to overcome this is by applying the concept of eco-drainage in residential areas. This study uses a quantitative descriptive approach to the Podo Asih Housing area, hydrological analysis is carried out to determine runoff discharge and hydraulic analysis to determine the capacity of the existing channel in the Podo Asih Housing area, the analysis is carried out to determine how much runoff discharge occurs, that is the basis In eco-drainage planning, it is necessary to take into account how many rainwater reservoirs, infiltration wells, and biopore infiltration holes are needed to control the runoff water. In collecting data, researchers conducted observations and measurements directly in the field, carried out laboratory tests, and collected rain data from the Department of Irrigation and Mining of Pasuruan Regency. HEC-RAS software for hydraulic analysis calibration. The results showed that there were 39 out of 118 channels that could not accommodate runoff water discharge, planned as many as 378 rainwater collectors, 68 infiltration wells, and 289 biopore infiltration holes that could reduce runoff discharge by 1,253 m3/s with a reduction percentage of 95.59% for a 2 year return period, 77.06% for a 5 year return period, and 68.19% for a 10 year return period. Keywords: housing, runoff, ecodrainage ABSTRAK Perumahan Podo Asih merupakan kawasan perumahan yang terletak di Kecamatan Beji Kabupaten Pasuruan, terletak pada 7°34'23.21” LS dan 112°44'00.39” BT dengan luas perumahan 50.000 m2 atau 5 hektar, perumahan yang relatif padat penduduk ini masih sering dijumpai. Adanya banjir yang dapat mengganggu aktivitas warga pemukiman. Salah satu alternatif untuk mengatasi hal tersebut adalah dengan menerapkan konsep ecodrainage pada kawasan pemukiman. Penelitian ini menggunakan pendekatan deskriptif kuantitatif pada kawasan Perumahan Podo Asih, analisis hidrologi dilakukan untuk menentukan debit limpasan dan analisis hidrolik untuk mengetahui kapasitas saluran yang ada di kawasan Perumahan Podo Asih, analisis dilakukan untuk mengetahui seberapa besar terjadi debit limpasan, yang menjadi dasar Dalam perencanaan ekodrainase, perlu diperhitungkan berapa jumlah penampungan air hujan, sumur resapan, dan lubang resapan biopori yang dibutuhkan untuk mengendalikan air limpasan. Dalam pengumpulan data, peneliti melakukan observasi dan pengukuran langsung di lapangan, melakukan uji laboratorium, dan mengumpulkan data hujan dari Dinas Pengairan dan Pertambangan Kabupaten Pasuruan. Perangkat lunak HEC-RAS untuk kalibrasi analisis hidrolik. Hasil penelitian menunjukkan terdapat 39 dari 118 saluran yang tidak dapat menampung debit air limpasan, direnc","PeriodicalId":488286,"journal":{"name":"Dampak","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135314292","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rancangan Teknis Reklamasi Lahan Bekas Penambangan Sirtu di Desa Trosono, Kecamatan Parang, Kabupaten Magetan","authors":"Indah Larasati, Abdul Hakim, Arqowi Pribadi, Teguh Taruna Utama","doi":"10.25077/dampak.20.2.55-62.2023","DOIUrl":"https://doi.org/10.25077/dampak.20.2.55-62.2023","url":null,"abstract":"Indoor air pollution is dangerous for human health because almost 90% of human activity occurs indoors. An important factor when assessing indoor air quality is the concentration of carbon dioxide (CO2). Even at very low concentrations, it can have a marked effect on the health of those in it. The purpose of this study was to review the ability of moss used as a living wall to absorb CO2 and study its potential application in improving indoor air quality. In addition, this research will also identify challenges that may be faced in implementing living moss walls. This study used the true experimental method with a pretest and posttest control group observation design. The study was conducted by comparing CO2 levels from 2 white cigarette smoke with and without living moss wall in a prototype room made of glass with dimensions of 40 cm x 40 cm and 55 cm high.The research results show that the use of living moss wall as a solution to overcome indoor air pollution, especially CO2, cannot be separated from several obstacles that must be faced in its implementation. Living moss wall has a relatively low CO2 reduction efficiency value by using blumei’s moss (Macromitrium blumei). The use of a living moss wall must also pay attention to the suitability of the environment where it is installed so that the living moss wall can function properly.Keywords: Living moss wall, carbon dioxide (CO2), indoor air pollution ABSTRAK Pencemaran udara dalam ruangan berbahaya bagi kesehatan manusia karena hampir 90% aktivitas manusia terjadi di dalam ruangan. Faktor penting dalam menilai kualitas udara dalam ruangan adalah konsentrasi karbon dioksida (CO2). Bahkan pada konsentrasi yang sangat rendah, CO2 dapat memiliki efek yang signifikan pada kesehatan orang yang berada di dalamnya. Tujuan dari penelitian ini adalah untuk mengevaluasi kemampuan lumut yang digunakan sebagai dinding hidup untuk menyerap CO2 dan mempelajari potensi aplikasinya dalam meningkatkan kualitas udara dalam ruangan. Selain itu, penelitian ini juga akan mengidentifikasi tantangan yang mungkin dihadapi dalam mengimplementasikan dinding lumut hidup. Penelitian ini menggunakan metode eksperimen sejati dengan desain observasi kelompok kontrol pretes dan postes. Penelitian ini dilakukan dengan membandingkan tingkat CO2 dari asap rokok putih dengan dan tanpa dinding lumut hidup dalam sebuah ruangan prototipe yang terbuat dari kaca dengan dimensi 40 cm x 40 cm dan tinggi 55 cm. Hasil penelitian menunjukkan bahwa penggunaan dinding lumut hidup sebagai solusi untuk mengatasi pencemaran udara dalam ruangan, terutama CO2, tidak dapat dipisahkan dari beberapa hambatan yang harus dihadapi dalam implementasinya. Dinding lumut hidup memiliki nilai efisiensi pengurangan CO2 yang relatif rendah dengan menggunakan lumut Macromitrium blumei. Penggunaan dinding lumut hidup juga harus memperhatikan kesesuaian lingkungan di mana dinding lumut hidup dipasang agar dapat berfungsi dengan baik.Kata Kunci: Living moss wal","PeriodicalId":488286,"journal":{"name":"Dampak","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135314291","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dosis Koagulan Optimum pada Proses Koagulasi Flokulasi Menggunakan Koagulan Serbuk Biji Hanjeli dalam Menurunkan Kekeruhan","authors":"Melinda Febrianti, Noven Pramitasari, Audiananti Meganandi Kartini","doi":"10.25077/dampak.20.1.1-7.2023","DOIUrl":"https://doi.org/10.25077/dampak.20.1.1-7.2023","url":null,"abstract":"One of the methods in post-disaster water treatment is coagulation-flocculation. Hanjeli seeds are a natural coagulant material that can be used. This study was conducted to determine the effect of the dose of hanjeli seed powder coagulants and pH in reducing turbidity in the coagulation-flocculation process in water. Initial turbidity (50 and 75 NTU) and pH of artificial raw water (8,9), the number of water samples is 200 ml, the coagulation speed is 50 rpm for 90 seconds, and the flocculation is 50 rpm for 25 minutes, and the deposition is 60 minutes. Influence analysis is using R Studio software. The method in the process of making natural coagulants from Hanjeli seeds is Sun Drying, and it is sifted with 80 mesh. The coagulant of hanjeli seed powder can reduce turbidity in water with the highest elimination efficiency value of 96%, whose final turbidity value is 3.74 NTU. The optimum dose is obtained at 300 ppm, while the optimum pH is 4. Keywords: coagulation, dose, flocculation, hanjeli, turbidity ABSTRAK Salah satu metode dalam pengolahan air pascabencana adalah koagulasi flokulasi. Biji Hanjeli merupakan bahan koagulan alami yang dapat digunakan. Penelitian ini dilakukan untuk mengetahui pengaruh dosis koagulan serbuk biji hanjeli dan pH dalam menurunkan kekeruhan pada proses koagulasi-flokulasi dalam air. Kekeruhan awal (50 dan 75 NTU) dan pH air baku buatan (8,9), jumlah sampel air 200 ml, kecepatan koagulasi 50 rpm selama 90 detik, dan flokulasi 50 rpm selama 25 menit, dan pengendapan adalah 60 menit. Analisis pengaruh menggunakan software R Studio. Metode dalam proses pembuatan koagulan alami dari biji Hanjeli ini adalah Sun Drying, dan diayak dengan ukuran 80 mesh. Koagulan bubuk biji hanjeli dapat menurunkan kekeruhan pada air dengan nilai efisiensi penyisihan tertinggi sebesar 96%, dengan nilai kekeruhan akhir sebesar 3,74 NTU. Dosis optimum diperoleh pada 300 ppm, sedangkan pH optimum adalah 4. Kata kunci: koagulasi, dosis, flokulasi, hanjeli, kekeruhan","PeriodicalId":488286,"journal":{"name":"Dampak","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135756420","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Studi Pengolahan Air Limbah Batik pada Skala Industri Rumah Tangga dan Usaha Kecil Menengah di Cirebon, Indonesia","authors":"Nazuwatussya’ Diyah, Tyar Ratuannisa, Estiyanti Ekawati, Elfi Yulia, Bambang Sunendar Purwasasmita, Ashari Budi Nugraha","doi":"10.25077/dampak.20.1.8-15.2023","DOIUrl":"https://doi.org/10.25077/dampak.20.1.8-15.2023","url":null,"abstract":"Since the admission of batik as a world cultural heritage by the United Nations Educational, Scientific and Cultural Organization, the public interest in batik and the batik industry has been increasing. However, the problem arises when the development of the batik industry is not accompanied by batik wastewater treatment that fits the wastewater quality standard. Hence it causes environmental pollution, especially for the aquatic body. This paper discusses the conditions and awareness for batik wastewater treatment in the batik industry on household and small-to-medium scales in Plered District, Cirebon, Indonesia. It examines the pollutant load of batik wastewater in the area, the respondent's knowledge about wastewater processing systems, wastewater impact on the environment, and the need for education about batik wastewater treatment plants (WWTPs). The examination of wastewater samples showed that batik wastewater did not meet the waste quality standards and potentially harmed the environment. The respondents generally use synthetic dyes, and were unaware of its impact on the surrounding environment. Keyword: batik, WWTPs, batik production process, dye, wastewater impact ABSTRAK Sejak ditetapkannya batik sebagai warisan budaya dunia oleh United Nations Educational, Scientific and Cultural Organization, minat masyarakat terhadap batik dan industri batik semakin meningkat. Namun permasalahan muncul ketika pengembangan industri batik tidak dibarengi dengan pengolahan air limbah batik yang sesuai dengan baku mutu air limbah. Oleh karena itu menyebabkan pencemaran lingkungan, terutama untuk badan air. Tulisan ini membahas tentang kondisi dan kesadaran pengolahan air limbah batik pada industri batik skala rumah tangga dan kecil-menengah di Kecamatan Plered, Cirebon, Indonesia. Kajian ini mengkaji beban polutan air limbah batik di wilayah tersebut, pengetahuan responden tentang sistem pengolahan air limbah, dampak air limbah terhadap lingkungan, dan perlunya penyuluhan tentang Instalasi Pengolahan Air Limbah (IPAL) batik. Pemeriksaan sampel air limbah menunjukkan bahwa air limbah batik tidak memenuhi baku mutu limbah dan berpotensi merusak lingkungan. Responden umumnya menggunakan pewarna sintetis, dan tidak mengetahui dampaknya terhadap lingkungan sekitar. Kata kunci: COD, elektrokoagulasi, elektroda aluminium, air limbah tahu, monopolar.","PeriodicalId":488286,"journal":{"name":"Dampak","volume":"72 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135441433","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pemanfaatan Sampah Organik dan Serbuk Kayu Menjadi Biobriket sebagai Energi Alternatif","authors":"Eka Retnawati, Isna Apriani, Aini Sulastri","doi":"10.25077/dampak.20.1.43-48.2023","DOIUrl":"https://doi.org/10.25077/dampak.20.1.43-48.2023","url":null,"abstract":"The rapid economic and population growth of Pontianak City has triggered an increase in domestic waste. The composition of Pontianak City waste in 2020 is dominated by organic waste (91.8%). The wood processing industry will produce 50% of its waste, as sawdust. One of the efforts to reduce the generation of organic waste and sawdust is to use it as fuel in the form of environmentally friendly bio-briquettes. This paper studies the chemical characteristics of calorific value, moisture content, and ash content as they variations in the composition of the resulting bio-briquettes. The research methods include drying, curing, sieving at 40 mesh, mixing charcoal with 15% starch adhesive, and compaction. The composition variations in this study were sawdust (SG): organic waste (SO) (85%:15%, 75%:25%, and 65%:35%). The results showed that the highest calorific value was found in the composition variation of sawdust (SG) at 85%:15% organic waste (SO) of 49 cal/gr, while the highest water content was 20.52% and the highest ash content was 14.57% in the variation of the composition of sawdust (SG) 65%:35% organic waste (SO). The results of the chemical characteristics of calorific value, moisture content, and ash content of bio-briquettes did not meet the requirements of SNI 01-6235-2000. Keywords: bio-briquettes, alternative energy, organic waste, sawdust ABSTRAK Pesatnya pertumbuhan ekonomi dan penduduk Kota Pontianak memicu peningkatan sampah domestik. Komposisi sampah Kota Pontianak tahun 2020 didominasi oleh sampah organik (91,8%). Industri pengolahan kayu akan menghasilkan 50% limbahnya berupa serbuk gergaji. Salah satu upaya untuk mengurangi timbulan sampah organik dan serbuk gergaji adalah dengan memanfaatkannya sebagai bahan bakar berupa biobriket ramah lingkungan. Makalah ini mempelajari karakteristik kimia nilai kalor, kadar air, dan kadar abu sebagai variasi komposisi biobriket yang dihasilkan. Metode penelitian meliputi pengeringan, pemeraman, pengayakan pada ukuran 40 mesh, pencampuran arang dengan perekat kanji 15%, dan pemadatan. Variasi komposisi pada penelitian ini adalah serbuk gergaji (SG): sampah organik (SO) (85% : 15%, 75% : 25%, dan 65% : 35%). Hasil penelitian menunjukkan bahwa nilai kalor tertinggi terdapat pada variasi komposisi serbuk gergaji (SG) 85% : 15% sampah organik (SO) sebesar 49kal/gr, sedangkan kadar air tertinggi 20,52% dan kadar abu tertinggi 14,57% pada variasi komposisi serbuk gergaji (SG) 65% : 35% sampah organik (SO). Hasil karakteristik kimia nilai kalor, kadar air dan kadar abu biobriket tidak memenuhi persyaratan SNI 01-6235-2000. Kata kunci: biobriket, energi alternatif, sampah organik, serbuk gergaji","PeriodicalId":488286,"journal":{"name":"Dampak","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135441432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analisis Karbon Monoksida (CO) Menggunakan Metode Gaussian Plume di Persimpangan Margorejo Ahmad Yani Surabaya","authors":"Muhammad Taffarel Faridzi Naufal, Ida Munfarida, Yusrianti Yusrianti","doi":"10.25077/dampak.20.1.16-25.2023","DOIUrl":"https://doi.org/10.25077/dampak.20.1.16-25.2023","url":null,"abstract":"Carbon monoxide is a pollutant that can interfere with human life and the environment. One of the sources of carbon monoxide pollutants comes from motor vehicle emissions. Heavy traffic can result in poor air quality. The city of Surabaya is the largest metropolitan city after Jakarta. One of the heavy traffic in the city of Surabaya is the Margorejo Ahmad Yani intersection, this intersection is the link between Surabaya and Sidoarjo. The purpose of this study is to determine the results of carbon monoxide in the field, predict the Gaussian Plume model, and calculate the results of field data validation and model data. Determination of the location of the sampling point is based on SNI 19-7119.6.9, 2005 section 6, so that a total of 6 sampling points can represent the intersection. The average yield of carbon monoxide in the field on Saturday, Sunday, and Monday in a row is 14,336 μg/m3, 13,615 μg/m3, 16,881 μg/m3. The distribution distance of the Gaussian model simulation on Saturday Morning; Afternoon; The afternoon in a row is 54 m; 64; 76 m, Sunday Morning; Afternoon; The afternoon in a row is 34 m; 53 m; 54 m, Monday Morning; Afternoon; The afternoon in a row is 62 m; 65 meters; 62 m. The results of field data validation and model data with the MAPE formula are 15.17%. Keywords: motor vehicles, carbon monoxide, gaussian ABSTRAK Karbon monoksida merupakan polutan yang dapat mengganggu kehidupan manusia dan lingkungan. Salah satu sumber pencemar karbon monoksida berasal dari emisi kendaraan bermotor. Lalu lintas yang padat dapat mengakibatkan kualitas udara yang buruk. Kota Surabaya merupakan kota metropolitan terbesar setelah Jakarta. Salah satu lalu lintas yang padat di Kota Surabaya adalah simpang Margorejo Ahmad Yani, simpang ini merupakan penghubung antara Surabaya dengan Sidoarjo. Tujuan dari penelitian ini adalah untuk mengetahui hasil karbon monoksida di lapangan, memprediksi model Gaussian Plume, dan menghitung hasil validasi data lapangan dan data model. Penentuan lokasi titik pengambilan sampel didasarkan pada SNI 19-7119.6.9 tahun 2005 pasal 6, sehingga sebanyak 6 titik pengambilan sampel mewakili titik potong tersebut. Hasil rata-rata karbon monoksida di lapangan pada hari Sabtu, Minggu, dan Senin berturut-turut adalah 14.336 μg/m3, 13.615 μg/m3, 16.881 μg/m3. Jarak distribusi simulasi model Gaussian pada Sabtu Pagi; Sore; Sore berturut-turut adalah 54 m; 64; 76 m, Minggu Pagi; Sore; Sore berturut-turut adalah 34 m; 53 m; 54 m, Senin Pagi; Sore; Sore berturut-turut adalah 62 m; 65 meter; 62 m. Hasil validasi data lapangan dan data model dengan rumus MAPE sebesar 15,17%. Kata kunci: kendaraan bermotor, karbon monoksida, gaussian","PeriodicalId":488286,"journal":{"name":"Dampak","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135441430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}