The concentrations of eight trace elements (As, Co, Cr, Cu, Fe, Mn, Pb and Zn) in the soil near a traffic way of Suzhou, Anhui province, China have been determined for the pollution assessment and source identification (along with quantification). The results indicate that Fe is the most abundant element followed by Mn, Zn, Cr, Pb, Cu, Co and As. These elements have low-medium coefficients of variation (0.059 – 0.293), indicating that some of them might have multisources. The combination of single pollution, geoaccumulation and the Nemerow composite indices suggest that the soils in this study are slightly polluted. Based on multivariate statistical analyses (including correlation, cluster and factor analyses), three sources responsible for the trace elemental concentrations in the soils have been identified, including geogenic, agricultural and traffic-related sources. Their mean contributions calculated based on the Unmix model are 35.9, 31.8 and 32.4%, respectively.
{"title":"Statistical approaches for identification and quantification of soil trace elemental pollution near the traffic way","authors":"Lin-hua Sun","doi":"10.37190/epe190402","DOIUrl":"https://doi.org/10.37190/epe190402","url":null,"abstract":"The concentrations of eight trace elements (As, Co, Cr, Cu, Fe, Mn, Pb and Zn) in the soil near a traffic way of Suzhou, Anhui province, China have been determined for the pollution assessment and source identification (along with quantification). The results indicate that Fe is the most abundant element followed by Mn, Zn, Cr, Pb, Cu, Co and As. These elements have low-medium coefficients of variation (0.059 – 0.293), indicating that some of them might have multisources. The combination of single pollution, geoaccumulation and the Nemerow composite indices suggest that the soils in this study are slightly polluted. Based on multivariate statistical analyses (including correlation, cluster and factor analyses), three sources responsible for the trace elemental concentrations in the soils have been identified, including geogenic, agricultural and traffic-related sources. Their mean contributions calculated based on the Unmix model are 35.9, 31.8 and 32.4%, respectively.","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":"70005461","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}
W. Rogula-Kozłowska, T. Mach, P. Rogula-Kopiec, J. Rybak, K. Nocoń
{"title":"Concentration and elemental composition of quasi-ultrafine particles in Upper Silesia","authors":"W. Rogula-Kozłowska, T. Mach, P. Rogula-Kopiec, J. Rybak, K. Nocoń","doi":"10.37190/epe190113","DOIUrl":"https://doi.org/10.37190/epe190113","url":null,"abstract":"","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":"70005036","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}
J. Fialová, H. Hybská, J. Mitterpach, D. Samešová, Jozef Kovalíček, Juraj Surový, P. Martauz
The bottom ash from municipal solid waste incineration is the most important by-product, in terms of energy recovery from municipal solid waste. Safe treatment and reuse of this bottom ash in construction materials is one of the ways of its effective use. The specific use precedes the study of the properties of the bottom ash from municipal solid waste incineration. In this study, samples of bottom ash were examined via sieve analysis, basic chemical parameters, ecotoxicological property analysis and determination of heavy metals (As, Cd, Cr, Cu, Pb, Ni, Zn). The sieve analyses of samples showed different contents of individual fractions. Ecotoxicological tests for acute toxicity on Daphnia magna in the raw aqueous extract showed positive results mortality of all individuals after 24 hours. The toxic effect of bottom ash was confirmed by the content of heavy metals.
{"title":"Bottom ash from municipal solid waste incineration. Basic parameters and ecotoxicological properties","authors":"J. Fialová, H. Hybská, J. Mitterpach, D. Samešová, Jozef Kovalíček, Juraj Surový, P. Martauz","doi":"10.37190/epe190308","DOIUrl":"https://doi.org/10.37190/epe190308","url":null,"abstract":"The bottom ash from municipal solid waste incineration is the most important by-product, in terms of energy recovery from municipal solid waste. Safe treatment and reuse of this bottom ash in construction materials is one of the ways of its effective use. The specific use precedes the study of the properties of the bottom ash from municipal solid waste incineration. In this study, samples of bottom ash were examined via sieve analysis, basic chemical parameters, ecotoxicological property analysis and determination of heavy metals (As, Cd, Cr, Cu, Pb, Ni, Zn). The sieve analyses of samples showed different contents of individual fractions. Ecotoxicological tests for acute toxicity on Daphnia magna in the raw aqueous extract showed positive results mortality of all individuals after 24 hours. The toxic effect of bottom ash was confirmed by the content of heavy metals.","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":"70005317","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}
The effects of ozone oxidation and ultrasonic pretreatment on anaerobic sludge bio-processing have been studied. Ultrasound (9690 kJ/kg total solids (TS) of specific energy) and ozone (0.1 g O 3 /kg TS) were applied to sludge samples preceding anaerobic sludge digestion for disintegration purpose. Organic matter reduction and methane production were measured, as well as physicochemical characteristics (pH, alkalinity, and particles size) and dewatering characteristics of sludge during semi-batch anaerobic digestion. For each treatment, 5 days of sludge retention time were applied on mesophilic conditions for 30 days operation period. The highest volatile solids reduction was obtained with ozone oxidation. Moreover, disintegrated sludge with ozone oxidation and ultrasonic pretreatment provided 55% and 49% higher methane production comparing to the raw sludge, respectively. In terms of dewatering characteristics of digested sludge, ultrasonic treatment led to an increase in the sludge’s resistance to dewatering. This negative effect was not observed in ozone oxidation.
研究了臭氧氧化和超声波预处理对厌氧污泥生物处理的影响。在厌氧污泥消化前，对污泥样品施加超声(9690 kJ/kg总固体(TS)的比能)和臭氧(0.1 g O 3 /kg TS)进行分解。测量了半批式厌氧消化过程中污泥的有机物减量和甲烷产量，以及污泥的理化特性(pH、碱度和粒径)和脱水特性。每个处理在中温条件下采用5天的污泥滞留时间，运行周期为30天。臭氧氧化获得了最高的挥发性固体还原。此外，臭氧氧化和超声波预处理的分解污泥的甲烷产量分别比原污泥高55%和49%。在消化污泥的脱水特性方面，超声处理使污泥的抗脱水能力增加。在臭氧氧化中没有观察到这种负面影响。
{"title":"Disintegration of biological sludge. A comparison between ozone oxidation and ultrasonic pretreatment","authors":"G. Erden, A. Filibeli","doi":"10.37190/epe190304","DOIUrl":"https://doi.org/10.37190/epe190304","url":null,"abstract":"The effects of ozone oxidation and ultrasonic pretreatment on anaerobic sludge bio-processing have been studied. Ultrasound (9690 kJ/kg total solids (TS) of specific energy) and ozone (0.1 g O 3 /kg TS) were applied to sludge samples preceding anaerobic sludge digestion for disintegration purpose. Organic matter reduction and methane production were measured, as well as physicochemical characteristics (pH, alkalinity, and particles size) and dewatering characteristics of sludge during semi-batch anaerobic digestion. For each treatment, 5 days of sludge retention time were applied on mesophilic conditions for 30 days operation period. The highest volatile solids reduction was obtained with ozone oxidation. Moreover, disintegrated sludge with ozone oxidation and ultrasonic pretreatment provided 55% and 49% higher methane production comparing to the raw sludge, respectively. In terms of dewatering characteristics of digested sludge, ultrasonic treatment led to an increase in the sludge’s resistance to dewatering. This negative effect was not observed in ozone oxidation.","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":"70005716","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}
Nu’man Abdul Hadi, Yahaya Hawari, Muzzammil Ngatiman, N. Jalani, N. Wahab, Rohaya Mohamed Halim
{"title":"Assessment of the effluent polishing plant using a ultrafiltration membrane installed at a palm oil mill","authors":"Nu’man Abdul Hadi, Yahaya Hawari, Muzzammil Ngatiman, N. Jalani, N. Wahab, Rohaya Mohamed Halim","doi":"10.37190/epe190112","DOIUrl":"https://doi.org/10.37190/epe190112","url":null,"abstract":"","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":"70005031","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}
E. Mohora, S. Rončević, J. Agbaba, Kristiana Zrnić, A. Tubić, Mesud Adžemović, B. Dalmacija
The removal of arsenic from groundwater by continuous electrocoagulation (EC) using combined Fe-Al electrodes at its natural temperature (16.1±0.2 °C) was comprehensively evaluated. The results obtained indicated that all studied Fe-Al electrode combinations were able to reduce As concentration below 10 μg/dm3. Nevertheless, the Fe-Fe-Al-Fe electrode combination was the most suitable due to its highest arsenic removal capacity (0.354 μg As/C) for the lowest charge loading 68.4 C/dm3. The specific consumption of Fe was 0.0339 kg Fe/m3 and of Al electrodes 0.0145 kg Al/m3. The operating cost was estimated at 0.182 €/m3. The increase of the groundwater temperature by 8 °C from its natural temperature influenced increase of the Fe and Al electrodes dissolution rate by 30% and 17%, respectively and that of As removal efficiency by 16%. The residual Fe and Al concentrations in 500 dm3 of treated groundwater were below WHO guideline values for drinking water. Long-term field operation of the pilot-scale continuous EC reactor is required to validate effectiveness, reliability and robustness of the EC technique for arsenic removal from groundwater confirmed in laboratory conditions.
综合评价了Fe-Al复合电极在自然温度(16.1±0.2℃)下连续电絮凝(EC)对地下水中砷的去除效果。结果表明，所研究的Fe-Al电极组合均能将砷浓度降低到10 μg/dm3以下。而Fe-Fe-Al-Fe电极组合在最低电荷负荷为68.4 C/dm3的情况下，具有最高的除砷能力(0.354 μg As/C)，是最合适的电极组合。铁的比耗为0.0339 kg Fe/m3，铝电极的比耗为0.0145 kg Al/m3。运营成本估计为0.182欧元/立方米。当地下水温度比自然温度升高8℃时，Fe和Al电极的溶解速率分别提高30%和17%，As的去除效率提高16%。500 dm3处理过的地下水中残余铁和铝浓度低于世卫组织饮用水指导值。需要中试规模连续EC反应器的长期现场运行，以验证EC技术在实验室条件下确认的地下水砷去除的有效性、可靠性和稳健性。
{"title":"Effects of combined Fe-Al electrodes and groundwater temperature on arsenic removal by electrocoagulation","authors":"E. Mohora, S. Rončević, J. Agbaba, Kristiana Zrnić, A. Tubić, Mesud Adžemović, B. Dalmacija","doi":"10.37190/epe190201","DOIUrl":"https://doi.org/10.37190/epe190201","url":null,"abstract":"The removal of arsenic from groundwater by continuous electrocoagulation (EC) using combined Fe-Al electrodes at its natural temperature (16.1±0.2 °C) was comprehensively evaluated. The results obtained indicated that all studied Fe-Al electrode combinations were able to reduce As concentration below 10 μg/dm3. Nevertheless, the Fe-Fe-Al-Fe electrode combination was the most suitable due to its highest arsenic removal capacity (0.354 μg As/C) for the lowest charge loading 68.4 C/dm3. The specific consumption of Fe was 0.0339 kg Fe/m3 and of Al electrodes 0.0145 kg Al/m3. The operating cost was estimated at 0.182 €/m3. The increase of the groundwater temperature by 8 °C from its natural temperature influenced increase of the Fe and Al electrodes dissolution rate by 30% and 17%, respectively and that of As removal efficiency by 16%. The residual Fe and Al concentrations in 500 dm3 of treated groundwater were below WHO guideline values for drinking water. Long-term field operation of the pilot-scale continuous EC reactor is required to validate effectiveness, reliability and robustness of the EC technique for arsenic removal from groundwater confirmed in laboratory 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":"70005092","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}
Karolina Kuskowska, W. Rogula-Kozłowska, K. Widziewicz
The mass size distribution of five fractions of particulate matter inside most popular types of closed sports facilities before and after athlete training were compared. In all the facilities, the concentrations of particles were higher during the training than before it. Their values depended on the type of flooring and cubic capacity of the rooms. Particle mass size distribution importantly affects the particle deposition rate in the respiratory tract. The results of the work indicate the necessity of further investigating the relations between the physical properties of particles and the effects of inhaling them during training in various sports facilities.
{"title":"A preliminary study of the concentrations and mass size distributions of particulate matter in indoor sports facilities before and during athlete training","authors":"Karolina Kuskowska, W. Rogula-Kozłowska, K. Widziewicz","doi":"10.37190/epe190307","DOIUrl":"https://doi.org/10.37190/epe190307","url":null,"abstract":"The mass size distribution of five fractions of particulate matter inside most popular types of closed sports facilities before and after athlete training were compared. In all the facilities, the concentrations of particles were higher during the training than before it. Their values depended on the type of flooring and cubic capacity of the rooms. Particle mass size distribution importantly affects the particle deposition rate in the respiratory tract. The results of the work indicate the necessity of further investigating the relations between the physical properties of particles and the effects of inhaling them during training in various sports facilities.","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":"70005301","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}
East coast of Algeria suffers from several types of pollution, mainly hydrocarbons. The hydrocar-bon-based bacteria of the littoral were investigated. 53 indigenous strains were isolated, identified according to morphological and biochemical nature. Dietzia sp. CNJ898 PLO4 and Vibrio alginolyticus PB-WC 11099 were selected for growth tests in the presence of monoaromatic hydrocarbons as a sole source of carbon and energy and total hydrocarbons at the end of growth. The results showed that both strains used monoaromatics to grow. The total hydrocarbons determined after growth showed that all monoaromatics were biodegraded with different rates. The maximum rate was obtained with Dietzia sp. in the presence of xylene with 4.33 mg C/dm 3 at the end of the process, followed by toluene with a level of 5.07 mg C/dm 3 and 5.60 mg C/dm 3 in the presence of Vibrio alginolyticus . The lowest degradation rate was obtained in the presence of benzene with Dietzia sp. with 15 mg C/dm 3 compared to the control, which was 27 mg C/dm 3 at the beginning of growth. The results obtained showed that both selected strains assimilated the monoaromatics tested and could be used for the bioremediation of the polluted littoral.
{"title":"Growth of indigenous bacteria Vibrio alginolyticus and Dietzia sp. isolated from the east coast of Algeria in the presence of monoaromatic hydrocarbons","authors":"N. Feknous, Z. Branes, I. Batisson, C. Amblard","doi":"10.37190/epe190309","DOIUrl":"https://doi.org/10.37190/epe190309","url":null,"abstract":"East coast of Algeria suffers from several types of pollution, mainly hydrocarbons. The hydrocar-bon-based bacteria of the littoral were investigated. 53 indigenous strains were isolated, identified according to morphological and biochemical nature. Dietzia sp. CNJ898 PLO4 and Vibrio alginolyticus PB-WC 11099 were selected for growth tests in the presence of monoaromatic hydrocarbons as a sole source of carbon and energy and total hydrocarbons at the end of growth. The results showed that both strains used monoaromatics to grow. The total hydrocarbons determined after growth showed that all monoaromatics were biodegraded with different rates. The maximum rate was obtained with Dietzia sp. in the presence of xylene with 4.33 mg C/dm 3 at the end of the process, followed by toluene with a level of 5.07 mg C/dm 3 and 5.60 mg C/dm 3 in the presence of Vibrio alginolyticus . The lowest degradation rate was obtained in the presence of benzene with Dietzia sp. with 15 mg C/dm 3 compared to the control, which was 27 mg C/dm 3 at the beginning of growth. The results obtained showed that both selected strains assimilated the monoaromatics tested and could be used for the bioremediation of the polluted littoral.","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":"70005377","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}
The method of assessing the flood risk variability has been presented based on maximum value distributions. Hydrological data were used in the form of daily water levels for the period 1981–2013. The collected data originate from the Malczyce Hydrological Station on the 300th km of the Odra River. To assess the risk of flooding based on the collected data quarterly highs were selected. As a measure of flood risk, the authors suggested the probability of exceeding the emergency level in the studied section of the river. This risk was calculated using the theoretical distribution function of the quarterly heights of the water level. The study used the Gumbel distribution. A special attention was paid to the possibility of using the presented solutions for an integrated flood risk management process in accordance with applicable national and European legislation.
{"title":"Application of the maxima distribution to the evaluation of the variability of flood risks in the Odra River basin on the basis of quarterly maxima of daily water levels","authors":"Łukasz Szałata, Łukasz Kuźmiński, J. Zwoździak","doi":"10.37190/epe190209","DOIUrl":"https://doi.org/10.37190/epe190209","url":null,"abstract":"The method of assessing the flood risk variability has been presented based on maximum value distributions. Hydrological data were used in the form of daily water levels for the period 1981–2013. The collected data originate from the Malczyce Hydrological Station on the 300th km of the Odra River. To assess the risk of flooding based on the collected data quarterly highs were selected. As a measure of flood risk, the authors suggested the probability of exceeding the emergency level in the studied section of the river. This risk was calculated using the theoretical distribution function of the quarterly heights of the water level. The study used the Gumbel distribution. A special attention was paid to the possibility of using the presented solutions for an integrated flood risk management process in accordance with applicable national and European legislation.","PeriodicalId":11709,"journal":{"name":"Environment Protection Engineering","volume":"2211 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70005574","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}
S. W. Ahmad, M. Zafar, Sajjad Ahmad, M. Zia‐ul‐Haq, M. Ashraf, J. Rabbani, S. Ullah
Chromium(VI) ions were removed from industrial wastewater. In this regard, a rig was fabricated carrying alkaline anion resin. Various experiments were carried out by varying pH, temperature and volumetric flow rate of solution by employing a rig to study the kinetics of the ion exchange process. The rate constant (k) and maximum solid phase concentration of exchanged solute (q0) were calculated using the Thomson equation to scale up the purification process of industrial runoff of chromium(VI) from the tanning, photography and ceramic industry. Experimental optimization revealed that developed setup will remove chromium(VI) to a level of 5 mg/dm3 from 300 mg/dm3 in 40 000 dm3 of wastewater. To achieve the best results for the flow rate of 10 000 dm3/day, 12.03 kg of anionic resin were recommended by fixing the pH of the setup at 7.4 while maintaining the treatment temperature at 20 °C.
{"title":"Removal of chromium(VI) from wastewater through ion exchange. Kinetic and scale up studies","authors":"S. W. Ahmad, M. Zafar, Sajjad Ahmad, M. Zia‐ul‐Haq, M. Ashraf, J. Rabbani, S. Ullah","doi":"10.37190/epe190102","DOIUrl":"https://doi.org/10.37190/epe190102","url":null,"abstract":"Chromium(VI) ions were removed from industrial wastewater. In this regard, a rig was fabricated carrying alkaline anion resin. Various experiments were carried out by varying pH, temperature and volumetric flow rate of solution by employing a rig to study the kinetics of the ion exchange process. The rate constant (k) and maximum solid phase concentration of exchanged solute (q0) were calculated using the Thomson equation to scale up the purification process of industrial runoff of chromium(VI) from the tanning, photography and ceramic industry. Experimental optimization revealed that developed setup will remove chromium(VI) to a level of 5 mg/dm3 from 300 mg/dm3 in 40 000 dm3 of wastewater. To achieve the best results for the flow rate of 10 000 dm3/day, 12.03 kg of anionic resin were recommended by fixing the pH of the setup at 7.4 while maintaining the treatment temperature at 20 °C.","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":"70005194","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}
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