KonversiPub Date : 2021-10-01DOI: 10.20527/k.v10i2.10973
Noor Khamidah, Hairu Suparto, Ita Oktavianingsih
{"title":"UTILIZATION ACTIVATED CHARCOAL OF HYACINTH AS PEAT WATER BIOFILTER USING ZnCl2 ACTIVATOR","authors":"Noor Khamidah, Hairu Suparto, Ita Oktavianingsih","doi":"10.20527/k.v10i2.10973","DOIUrl":"https://doi.org/10.20527/k.v10i2.10973","url":null,"abstract":"Peat water is a type of water that does not meet the quality of clean water because it has a cloudy color, smells, tastes and low pH. One of the peat water repair technologies is to use activated charcoal to improve the quality of peat water. Water hyacinth has the potential to be used as activated charcoal because it has high levels of C-organic. Charcoal needs to be activated to open the pores, one of activator materials that can be used is ZnCl2. This study aims to determine the potential of water hyacinth activated charcoal to be used as a peat water biofilter, to determine the usefulness of ZnCl2 as a water hyacinth charcoal activator, and to determine the correct concentration of ZnCl2 activator for water hyacinth charcoal activation process. The research was conducted at the Production Laboratory of the Agroecotechnology Department, Animal Nutrition and Food Laboratory, Animal Husbandry Department, Agriculture Faculty, and Water Quality and Hydro-Bioecology Laboratory, Aquatic Resources Management Department, Fisheries and Marine Faculty, Lambung Mangkurat University, Banjarbaru, from December 2020-January 2021. This study used a completely randomly design (CRD) single factor that is difference in the concentration of ZnCl2 activator with 4 experimental units. Activated charcoal of water hyacinth can be used as a peat water biofilter as indicated by the parameters of turbidity, TDS, pH, temperature, taste and smells of water. ZnCl2 can be used as an activator for charcoal of water hyacinth using the physic-chemical activation method. The correct concentration of activator is ZnCl2 30%.","PeriodicalId":32236,"journal":{"name":"Konversi","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79115704","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}
KonversiPub Date : 2021-10-01DOI: 10.20527/k.v10i2.11078
Indah Listiowati, Abdul Hakim, S. W. Auvaria
{"title":"QUALITY TEST AND PLANNING OF SLUDGE TREATMENT INSTALLATION OF WATER TREATMENT PDAM","authors":"Indah Listiowati, Abdul Hakim, S. W. Auvaria","doi":"10.20527/k.v10i2.11078","DOIUrl":"https://doi.org/10.20527/k.v10i2.11078","url":null,"abstract":"Tujuan pada penilitian ini, untuk mengetahui kualitas dan perencanaan pengolahan lumpur instalasi pengolahan air PDAM. Metode yang digunakan mengenai tahapan pengampilan sampel yaitu dengan grab sampling, dan pengambilan dilakukan selama 8 hari. Pengambilan sampel lumpur dilkakukan pada pipa yang didiamkan mengalir selama 30 detik agar didapatkan debit konstan. Analisa untuk uji kualitas lumpur IPA PDAM dilakukan di laboratorium. Hasil dari penelitian mengenai uji kualitas pada pipa pembuangan lumpur pada unit sedimentasi. Data yang dibutuhkan meliputi data primer, dan sekunder. Hasil dari penelitian ini mengenai uji kualitas lumpur dari instalasi pengolahan air PDAM, memiliki nilai rata-rata pH 7,7, suhu 27°C, kekeruhan >1000 NTU hal ini dikarenakan kualitas air baku yang memiliki kandungana koloid tinggi. Total solid memiliki nilai rata-rata 281.772 mg/L, total suspended solid dengan nilai rata-rata 52.134 mg/L, COD memiliki nilai rata-rata 3.100 mg/L, dan BOD 3,96 mg/L dengan nilai ratarata . Debit rata-rata harian lumpur yang dihasilkan dari instalasi pengolahan air sebesar 145,773 m3/hari. Unit yang direncanakan sesuai dengan kualitas, dan volume yang diketahui maka direncanakan unit pengolahan lumpur meliputi bak pengumpul, gravity thickening, belt filter press, dan bak pengumpul dry cake. Anggaran biaya yang direncanakan untuk perencanaan pengolahan lumpur instalasi pengolahan air sesuai dengan unit yang diperlukan membutuhkan anggaran dana sebesar Rp. 1.037.900.00,00.","PeriodicalId":32236,"journal":{"name":"Konversi","volume":"65 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74661715","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}
KonversiPub Date : 2021-10-01DOI: 10.20527/k.v10i2.11080
Andika Putra, Yusrianti Yusrianti, A. Ważna
{"title":"PLANNING FOR WASTE COLLECTION AND STORAGE IN NGEPUNG VILLAGE, KEDAMEAN DISTRICT, GRESIK","authors":"Andika Putra, Yusrianti Yusrianti, A. Ważna","doi":"10.20527/k.v10i2.11080","DOIUrl":"https://doi.org/10.20527/k.v10i2.11080","url":null,"abstract":"Ngepung Village is a village located in the eastern part of Kedamean District, Gresik Regency with an area of 5.08 km2. Ngepung Village is divided into 3 Hamlets, 5 Rukun Warga (RW), and 14 Rukun Tetangga (RT) consisting of 3493 people. Waste management in Ngepung Village still uses the old paradigm, namely gathering-burning or gathering-wasting. The purpose of this study is to determine the existing condition of waste management in Ngepung Village and to plan waste collection and storage. The research method includes direct measurement of waste generation, interviews, observation and documentation. Determination of sampling using simple random sampling according to SNI 19-3964-1994. Data analysis used quantitative descriptive techniques. The results of the study stated that most of the residents of Ngepung Village used plastic bags as garbage containers. The average value of waste generation in Ngepung Village is 2.05 L/org.day or 0.31 kg/org.day. Meanwhile, the composition of waste is dominated by organic waste of 60.49%. The waste collection plan consists of 2 types of waste containers, namely organic and inorganic containers, with a housing waste container capacity of 25 liters per family, a 70 liter office waste container capacity, 100 liter pesantren waste containers, 30 liter schools, and 25 liter places of worship. Garbage collection is planned to be carried out every 3 days with 3 cycles using 5 units of three-wheeled motorized carts with a capacity of 1.25 m3.","PeriodicalId":32236,"journal":{"name":"Konversi","volume":"46 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74136479","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}
KonversiPub Date : 2021-10-01DOI: 10.20527/k.v10i2.11072
Nadya Hasna, D. Suprayogi, A. Hakim
{"title":"USE OF PHOSPHORIC ACID AS BIOADSORBENT ACTIVATOR OF KETAPANG LEAVES (Terminalia sp.) TO REDUCE RHODAMINE B CONTAMINANTS","authors":"Nadya Hasna, D. Suprayogi, A. Hakim","doi":"10.20527/k.v10i2.11072","DOIUrl":"https://doi.org/10.20527/k.v10i2.11072","url":null,"abstract":"Ketapang contains tannin and phenolic compounds which are known to absorb metals and pollutants in the air. The purpose of this study was to determine the effectiveness of the biadsorbent from ketapang leaves (Terminalia sp.) on the adsorption of Rhodamine B dye without activation and with activation by 10% phosphoric acid. The study began with testing the variation of mass, time, and concentration of Rhodamine B by ketapang leaves. Then the adsorption process was carried out using a batch system and the concentration of the filtrate was measured using a UV-Vis spectrophotometer. Followed by the isotherm analysis of Freundlich and Langmuir. The results showed that the bioadsorbent ability of ketapang leaves without activation or with activation by 10% H3PO4 in terms of mass variation, contact time, and Rhodamine B concentration were 300 mg, contact time was 90 & 120 minutes, and Rhodamine B concentration was 10 mg/l. - 30 mg/l. The maximum bioadsorbent capacity of ketapang leaves (Qm) without activation was 3.7037 mg/g, while that of ketapang leaves with phosphoric acid activation was 1.0673 mg/g. The adsorption model used by the ketapang leaf bioadsorbent is the Freundlich isotherm where the R2 value close to 1 is 0.9573.","PeriodicalId":32236,"journal":{"name":"Konversi","volume":"45 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90957646","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}
KonversiPub Date : 2021-10-01DOI: 10.20527/k.v10i2.11247
N. K. Erliyanti, Afida Kartika Sari, A. Chumaidi, R. Yogaswara, E. Saputro
{"title":"TRANSESTERIFICATION OF BIODIESEL FROM KAPOK SEED OIL (Ceiba pentandra)","authors":"N. K. Erliyanti, Afida Kartika Sari, A. Chumaidi, R. Yogaswara, E. Saputro","doi":"10.20527/k.v10i2.11247","DOIUrl":"https://doi.org/10.20527/k.v10i2.11247","url":null,"abstract":"The purpose of this study was to determine the effect of KOH concentration and reaction time on the flash point and pour point of biodiesel from kapok seed oil. The biodiesel transesterification process is carried out in a batch reactor equipped with stirrer. The first step in this research is to reduce the free fatty acid content (esterification process). The second step is transesterification of biodiesel from kapok seed oil. The concentrations of KOH used in this research were 0.5, 1.0, 1.5, and 2.0% by weight of the oil and the reaction time were 0.25, 0.5, 1.0, and 1.5 hours. The operating conditions used in this study were a temperature of 60 oC and a pressure of 4 bar. The results showed that the concentration of KOH and reaction time had a significant effect on the flash point and pour point of biodiesel. The best flash point and pour point were obtained at a concentration of 0.5% KOH and a reaction time of 1.5 hours, which were 163 oC and -8 oC.","PeriodicalId":32236,"journal":{"name":"Konversi","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88627974","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}
KonversiPub Date : 2021-10-01DOI: 10.20527/k.v10i2.10806
Dwi Saputri, F. Marendra, A. Prasetya, A. T. Yuliansyah
{"title":"THE SUSTAINABILITY ASSESSMENT OF COMMUNAL WASTE WATER TREATMENT PLANT (WWTP) IN INDONESIA: CASE STUDI COMMUNAL WWTP IN SLEMAN REGENCY, YOGYAKARTA, INDONESIA","authors":"Dwi Saputri, F. Marendra, A. Prasetya, A. T. Yuliansyah","doi":"10.20527/k.v10i2.10806","DOIUrl":"https://doi.org/10.20527/k.v10i2.10806","url":null,"abstract":"Wastewater contains pollutants that can disturb the balance of the ecosystem in the form of health problems, water quality degradation and others. According to Said, (2008) the problem experienced in almost all cities in Indonesia is wastewater pollution. The purpose of this study is to determine the distribution of conditions and performance values, factors that influence the conditions and performance of Communal WWTPs in Sleman Regency Yogyakarta. The method used in this study is an interview with the help of guidelines to respondents who have been determined. The location of the sample collection was determined by the stratified random sampling method based on the District and Village for the decision of data collection at 30 Communal WWTPs of Sleman Regency. The results of the interview are processed by the Likert scoring method and then drawn with the Radar Chart. The factors that influence the conditions and performance of Communal WWTPs are then obtained from the ranking of the criteria for the conditions and performance of Communal WWTPs that have been calculated. The results showed that overall Communal WWTPs in Sleman Regency had conditions and performance with a value of 2.98 which was included in the interval of value 3 with a fairly good category. This value consists of the value of the technical aspect of 3.52 with a very good category, the value of the environmental aspect of 2.94 with a fairly good category, and the value of the socio-economic aspect of 2.48 with a rather poor category. Factors that influence the condition and performance of Communal WWTPs in Sleman Regency whose value is still less than expected are the maintenance of facilities with a value of 2.27, the load of wastewater with a value of 2.43, the institutional value of 2.47, and the management performance monitoring program with a value of 2.50 which falls into the rather poor value category.","PeriodicalId":32236,"journal":{"name":"Konversi","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88326868","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}
KonversiPub Date : 2019-11-26DOI: 10.20527/k.v8i2.7203
R. A. Lestari, R. Lestari
{"title":"ANALYSIS OF ENCAPSULATED YEAST IN COMPUTATIONAL FLUID DYNAMICS APPROACH","authors":"R. A. Lestari, R. Lestari","doi":"10.20527/k.v8i2.7203","DOIUrl":"https://doi.org/10.20527/k.v8i2.7203","url":null,"abstract":"Abstract - Computational fluid dynamics of encapsulated yeast has been developed to determine characterization of encapsulated yeast applied for ethanol production from lignocellulose waste. Encapsulated yeast as biologically activate materials enclosed in a semipermeable membrane to protect cell from inhibitor attack. Encapsulated yeast system relates to mass transfer of substrate (glucose) into capsule and out of capsule and fermentation reaction. Modelling of mass transfer was developed to understand capsule performance consisting of 3 parts, cell aggregate, liquid space and thin membrane. Finite element method has been applied to solve partial differential equation of glucose concentration profile against x, y position and t -time in Comsol multhiphysics 3.5a. Capsule geometry was showed in half part capsule, 2D and axis symmetries. Trend line of glucose distribution was effected by thickness membrane that 0.1 mm controlling in mass transfer and cell aggregate of 50%-v of membrane.Keywords: computational fluid dynamics, encapsulated yeast system, glucose mass transfer","PeriodicalId":32236,"journal":{"name":"Konversi","volume":"1943 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91180926","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}
KonversiPub Date : 2019-11-26DOI: 10.20527/k.v8i2.7173
Sarah Dampang, Nanang Burhan, C. Ramayanti
{"title":"PIPE CONDITION ANALYSIS USING ULTRASONIC TESTING TO PREDICT THE REMAINING SERVICE LIVE (RSL) OF THE PETROLEUM DISTRIBUTION PIPELINE","authors":"Sarah Dampang, Nanang Burhan, C. Ramayanti","doi":"10.20527/k.v8i2.7173","DOIUrl":"https://doi.org/10.20527/k.v8i2.7173","url":null,"abstract":"The pipeline network in the petroleum industry is very susceptible to corrosion. Corrosion problems can cause losses that are not small financially. Corrosion that occurs in underground pipes can be in the form of external corrosion on the outer surface of the pipe caused by acid content in the air or in the soil or internal corrosion inside the pipe caused by petroleum content in the form of water, carbon dioxide (CO2) and hydrogen sulfide (H2S). Corrosion causes the useful or service life of these pipes to be shorter than expected. This study aims to measure the Remaining Service Life (RSL) of the petroleum distribution pipeline as an initial step of preventive action to avoid fatal consequences of corrosion problems. In this study, ultrasonic testing was used as one of the Non Destructive Testing (NDT) methods to check the condition of the petroleum distribution pipe's wall. In this study, it is found that the Remaining Service Life (RSL) of the pipeline under investigation is 25 years.","PeriodicalId":32236,"journal":{"name":"Konversi","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87132524","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}
KonversiPub Date : 2019-11-25DOI: 10.31213/k.v7i1.3
N. Putri, M. Muslim, J. Sitorus, D. L. Putra, Marjenah Marjenah
{"title":"EXTRACTION OF KETAPANG SEEDS (TERMINALIA CATAPPA LINN) AS RAW MATERIAL OF BIODIESEL","authors":"N. Putri, M. Muslim, J. Sitorus, D. L. Putra, Marjenah Marjenah","doi":"10.31213/k.v7i1.3","DOIUrl":"https://doi.org/10.31213/k.v7i1.3","url":null,"abstract":"Abstract- Terminalia catappa Linn. (ketapang) is a coastal tree with a widespread area. Its derived from the tropics of India, and spread to Southeast Asia, Northern Australia and Polynesia in the Pacific Ocean. This study aims to determine the effect of maceration time on the density of the species, yield, and % FFA from oil of ketapang. The research procedure is done by soaking ketapang seed powder wrapped with filter paper into a chemical glass containing 500 mL of n-Hexane solvent. Then the solvent which has been mixed with oil, separated by distillation. Variables used in this research is the variation of immersion time in the unit of day. The results of the research are 25-31 mL of oil volume, yield percentage of 0.44-0.52, density of 0.84-0.88 g / mL, 28-35% percentage of FFA. Ketapang oil obtained a lot of fatty acids that can be used as raw materials for making biodiesel but it needs to be pre-esterification first to reduce levels of FFA up to 2%. Keywords: FFA, Ketapang Oil, Maseration, Yield","PeriodicalId":32236,"journal":{"name":"Konversi","volume":"31 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81173549","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}
KonversiPub Date : 2019-11-25DOI: 10.31213/K.V7I1.5
D. R. Wicakso, A. Najma, D. Retnowati
{"title":"CRUDE BIODIESEL SYNTHESIS FROM RUBBER SEED OIL","authors":"D. R. Wicakso, A. Najma, D. Retnowati","doi":"10.31213/K.V7I1.5","DOIUrl":"https://doi.org/10.31213/K.V7I1.5","url":null,"abstract":"Abstract-Biodiesel is a diesel engine fuel made from oil containing triglycerides as well as rubber seed oil. This research aims to study how the extraction process of rubber seed oil, to know the effect of crude biodiesel manufacturing process by transesterification and esterification-transesterification and the addition of different catalysts on the transesterification process of crude biodiesel produced. Esterification process use H2SO4 catalyst and transesterification process use KOH and NaOH catalyst. The process of making crude biodiesel done by transesterification and can also by the merging of esterification-transesterification process. Based on this research, yield of crude biodiesel produced by transesterfication and esterification-transesterification by using NaOH catalyst is 38% and 75,6%, while yielded by KOH catalyst is 22,5% and 80%. While the acid number obtained from the transesterification process and esterification-transesterification using KOH catalyst is the same that is 1.33 and for the NaOH catalyst is 1,83 and 1,68. Saponification number obtained from both processes using KOH catalysts were 24,68 and 26,37 and for NaOH catalysts were 18,51 and 20,20. Keywords: Rubber seed oil, crude biodiesel, acid number, saponification number. ","PeriodicalId":32236,"journal":{"name":"Konversi","volume":"102 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84973065","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}