Environment Protection Engineering最新文献_第10页

Application of organic waste for adsorption of Zn(II) and Cd(II) ions 有机废物在吸附Zn(II)和Cd(II)离子中的应用

IF 0.6 4区环境科学与生态学

Environment Protection Engineering Pub Date : 2019-01-01 DOI: 10.37190/epe190203

T. Bakalár, H. Pavolová

引用次数: 3

Investigations on the effectiveness of wastewater purification in medium sand with assisting clinoptilolite layer 斜沸石辅助层对中砂废水净化效果的研究

IF 0.6 4区环境科学与生态学

Environment Protection Engineering Pub Date : 2019-01-01 DOI: 10.37190/epe190208

Marek Kalenik, M. Chalecki

{"title":"Investigations on the effectiveness of wastewater purification in medium sand with assisting clinoptilolite layer","authors":"Marek Kalenik, M. Chalecki","doi":"10.37190/epe190208","DOIUrl":"https://doi.org/10.37190/epe190208","url":null,"abstract":"Model investigations of wastewater purification were carried out in a medium sand bed with an assisting natural clinoptilolite layer 0.10 or 0.25 m thick. The effectiveness of wastewater purification related to basic qualitative parameters was in accordance with the Polish standards on sewage disposal into grounds and surface water. Medium sand soil bed with the assisting natural clinoptilolite layer 0.25 m thick showed on average the removal efficiency regarding TSS higher by 3.3%, total nitrogen by 29.3%, total phosphorus by 25.9%, reduction efficiency regarding BOD5 by 1.1% and COD by 15.9% than that with the thinner clinoptilolite layer. The investigations confirmed that natural clinoptilolite with the granulation 1–5 mm can be used to enhance the removal of nitrogen and phosphorus compounds from wastewater with the application of infiltration drainage. However, very good effect of the TSS removal from the wastewater in the investigated soil beds can lead to their fast clogging under the infiltration drainage. Septic tanks should be designed in such a way that they retain as much TSS as possible, e.g., multi-chamber tanks instead of one-chamber ones.","PeriodicalId":11709,"journal":{"name":"Environment Protection Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70005522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Heavy metals and sulfate removal from water by means of Al powder-cement-based filtration 铝粉-水泥基过滤去除水中重金属和硫酸盐

IF 0.6 4区环境科学与生态学

Environment Protection Engineering Pub Date : 2019-01-01 DOI: 10.37190/epe190305

T. Suponik, Z. Różański, M. Popczyk

{"title":"Heavy metals and sulfate removal from water by means of Al powder-cement-based filtration","authors":"T. Suponik, Z. Różański, M. Popczyk","doi":"10.37190/epe190305","DOIUrl":"https://doi.org/10.37190/epe190305","url":null,"abstract":"Al powder-cement-based filters used to treat contaminated water from a coal mining area were designed and tested. Several of these multicomponent filters, containing quartz sand, Portland cement and water, as well as additional components (Al powder, CaO and CaSO 4 ) in various mass proportions have been prepared. In this respect, an exhaustive analysis of the impact of the individual components on the properties of the filters was conducted to evaluate their efficiency in the removal of heavy metals and SO 42– . Moreover, additional filter properties such as water permeability, uniaxial compressive strength and resistance to frost were also considered. The information gathered revealed that the designed filters pose high efficiency in respect of heavy metal removal (Cu, Cr, Ni, Co, Zn) and also exhibit proper water permeability and high mechanical strength. Based on this analysis, an optimal filter composition is provided. The results reported herein suggest that Al powder-cement-based filters are environmentally sustainable and cost effective for the treatment of water from industrial sites even in cold weather conditions.","PeriodicalId":11709,"journal":{"name":"Environment Protection Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70005724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Effect of neutralizing substances on the content of trace elements in soil contaminated with cobalt 中和物质对钴污染土壤中微量元素含量的影响

IF 0.6 4区环境科学与生态学

Environment Protection Engineering Pub Date : 2019-01-01 DOI: 10.37190/epe190104

M. Kosiorek, M. Wyszkowski

{"title":"Effect of neutralizing substances on the content of trace elements in soil contaminated with cobalt","authors":"M. Kosiorek, M. Wyszkowski","doi":"10.37190/epe190104","DOIUrl":"https://doi.org/10.37190/epe190104","url":null,"abstract":"The aim of the study was to determine the effect of increasing doses of cobalt (0, 20, 40, 80, 160, 320 mg/kg d.m. of soil) on the total content of trace elements in soil after application of manure, clay, charcoal, zeolite and calcium oxide. The neutralizing substances were applied at 2% of the soil weight, and calcium oxide at a dose corresponding to one hydrolytic acidity. The content of the cobalt, cadmium, lead, chromium, nickel, zinc, copper, manganese and iron was determined in soil. The contamination of soil with cobalt and the application of neutralizing substances had significant effects on the total content of trace elements in soil In the series without substances, the soil contamination with cobalt increased the content of cobalt, lead, chromium, nickel and zinc in soil. All the neutralizing substances reduced the content of cobalt, manganese and iron in soil. The highest decrease in the cobalt content was observed in the series with manure, whereas the highest decrease in zinc occurred after addition of charcoal. The decrease in the content of the other metals (except nickel and lead) was observed in the pots with CaO and zeolite. The effect of other neutralizing substances depended on the trace element.","PeriodicalId":11709,"journal":{"name":"Environment Protection Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70004776","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Reuse of alum sludge for reducing flocculant addition in water treatment plants 明矾污泥再利用以减少水处理厂絮凝剂的添加

IF 0.6 4区环境科学与生态学

Environment Protection Engineering Pub Date : 2019-01-01 DOI: 10.37190/epe190105

P. Scalize, L. Souza, A. Albuquerque

引用次数: 8

Mitigation of scale problem in the pumped Disi water to Amman, Jordan 缓解向约旦安曼泵送迪西水的水垢问题

IF 0.6 4区环境科学与生态学

Environment Protection Engineering Pub Date : 2019-01-01 DOI: 10.37190/epe190108

Alaa M. AL-MAABREH, A. Al-Rawajfeh, E. AlShamaileh, G. A. Al-Bazedi

{"title":"Mitigation of scale problem in the pumped Disi water to Amman, Jordan","authors":"Alaa M. AL-MAABREH, A. Al-Rawajfeh, E. AlShamaileh, G. A. Al-Bazedi","doi":"10.37190/epe190108","DOIUrl":"https://doi.org/10.37190/epe190108","url":null,"abstract":"Various methods are known to mitigate or prevent scale formation in pipes, rather by chemical addition, e.g., anti-scaling substances, or physically which includes ultrasonic or nanofiltration (NF). Nanofiltration membranes have a selectivity for the multivalent charged ions, so monovalent ions will pass the membrane partly and multivalent ions will be rejected completely. Chemical addition to prevent scale formation is based on justifying water parameters such as pH, alkalinity, and concentrations of ions that form the building units of scale crystal. In order to mitigate the scaling tendency in water pumped from the Disi aquifer to Amman city along its 345 km pipeline, different studies were conducted using simulated plumbing system. This part of the study is concerned with scale mitigation using nanofiltration and addition of chemicals. Nanofiltration was applied to reduce the hardness that causes scale deposition where it rejected around 70.5% of Ca2+, 71.98% Mg2+, 7.72% K+, 29.0% Na+, 66.63% Cl–, 86.51% NO3, 85.72% SO4, and 69.85% CO2. Increasing the concentration of some ions such as Na+, K+ and Cl– keeping the allowable limit gave good results for scale mitigation.","PeriodicalId":11709,"journal":{"name":"Environment Protection Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70004954","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Evaluation of influence of coagulation/flocculation and Fenton oxidation with iron on landfill leachate treatment 混凝/絮凝及Fenton氧化对垃圾渗滤液处理的影响评价

IF 0.6 4区环境科学与生态学

Environment Protection Engineering Pub Date : 2019-01-01 DOI: 10.37190/epe190111

Y. Smaoui, Salma Mseddi, N. Ayadi, S. Sayadi, J. Bouzid

引用次数: 9

Carbon and nutrient removal from domestic wastewaters in a modified 5-stage Bardenpho process via fuzzy modeling approach 基于模糊模型的改良五段式巴登富工艺去除生活污水中的碳和营养物

IF 0.6 4区环境科学与生态学

Environment Protection Engineering Pub Date : 2019-01-01 DOI: 10.37190/epe190101

N. Demir, Asuman Yildirim, T. Coskun, Cigdem Balcik Canbolat, Eyup Debik

引用次数: 1

Study on activated sludge flocs morphology and composition in a full-scale wastewater treatment plant in Poland 波兰某污水处理厂活性污泥絮凝体形态及组成研究

IF 0.6 4区环境科学与生态学

Environment Protection Engineering Pub Date : 2019-01-01 DOI: 10.37190/epe190205

E. Liwarska-Bizukojc, O. Andrzejczak, M. Solecka

{"title":"Study on activated sludge flocs morphology and composition in a full-scale wastewater treatment plant in Poland","authors":"E. Liwarska-Bizukojc, O. Andrzejczak, M. Solecka","doi":"10.37190/epe190205","DOIUrl":"https://doi.org/10.37190/epe190205","url":null,"abstract":"This work is a comprehensive study of a full-scale municipal wastewater treatment plant (WWTP) in the city of Zgierz (Poland) aiming at the estimation of the impact of seasonal changes of temperature on flocs morphology, biomass concentration, quantity of filamentous bacteria, content of polyhydroxybutyrate (PHB) and composition of microinvertebrates in the activated sludge system. Two short-term measurement campaigns, in winter and in summer, were carried out under dry weather conditions. It occurred that lower temperatures (11.1–14.6 °C) had hardly any effect on flocs size or concentration of activated sludge biomass in the full-scale activated sludge system treating municipal wastewater. They did not aggravate the biosynthesis of PHB either. However, decreasing temperature favored the growth of filamentous bacteria and led to the elevation of the sludge volume index (SVI). In spite of this, it did not induce any bulking events. Irrespective of the season, the groups of crawling ciliates, attached ciliates and testate amoebae, indicating good performance of the full-scale plant tested, were predominant.","PeriodicalId":11709,"journal":{"name":"Environment Protection Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70005428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Study on ultrasound assisted desulfurization of light gas oil using inorganic liquid 无机液体超声辅助轻气油脱硫研究

IF 0.6 4区环境科学与生态学

Environment Protection Engineering Pub Date : 2019-01-01 DOI: 10.37190/epe190401

Luma H. Mahmood, M. Abid, M. I. Mohammed

{"title":"Study on ultrasound assisted desulfurization of light gas oil using inorganic liquid","authors":"Luma H. Mahmood, M. Abid, M. I. Mohammed","doi":"10.37190/epe190401","DOIUrl":"https://doi.org/10.37190/epe190401","url":null,"abstract":"The feasibility of removing sulfur from real light gas oil using inorganic liquids (NaOH, Ca(OH) 2 and HCl) at various concentrations assisted with ultrasonication was investigated in a continuous flow setup. Experimental results showed that at the optimum operating time (40 min), 68% of sulfur was removed under mild conditions using 10 wt. % NaOH. Ultrasonication not only facilitated sulfur removal but also improved gas oil properties by decreasing density and viscosity by 1.40 and 4.42%, respectively, while the cetane number ( CN ) was increased by 7.0%. Solute selectivity ( S ) depending on sulfur mole fraction ( x S ) was correlated using StatPlus 6.7.1.0 software and the following values have been obtained: S = 53.869e –2.552 x S , and S = 29.573 – 41.878 x s for mixtures of 10% Ca(OH) 2 + S-compound + oil, and 10% NaOH + S-compound + oil, respectively. The correlation coefficients ( R 2 ) for the above equations were 0.9813 and 0.9611, respectively. An empirical correlation related to sulfur removal as a function of processing time and solvent concentration was found with R 2 = 0.956. The results of the present work confirmed the feasibility of employing the hybrid method of ultrasonication with using alkaline liquids for sulfur removal.","PeriodicalId":11709,"journal":{"name":"Environment Protection Engineering","volume":"142 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70005451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2