Advanced wastewater treatment;
Electrocoagulation;
Micropollutants;
Suspended solids;
Pollution and cost analysis;
CHEMICAL COAGULATION;
COD REMOVAL;
IRON;
ALUMINUM;
ELECTRODES;
SYSTEM;
D O I:
10.1016/j.jwpe.2019.101101
中图分类号:
X [环境科学、安全科学];
学科分类号:
08 ;
0830 ;
摘要:
In this research, wastewater treatment was inspected on a pilot-scale wastewater treatment plant by electrochemical techniques, electrocoagulation (EC), electroflotation (EF) and electrophoretic deposition (EPD). The wastewater samples have been characterised by applying different parameters to determine optimum working conditions of the electrocoagulation reactor. Two electrodes have been tested separately with an outflow coming from primary and secondary sedimentation tank. The outflows from these tanks are introduced in EC reactor then EC reactor efficacy is determined for the removal of chemical oxygen demand (COD), suspended solids, micropollutants and amount of coagulants in agglomerates at different current densities. The amounts of suspended solids (SS) in influent and effluent streams were determined by the membrane filtration technique. The operational applied current values range from 1-4 A in the case of COD removal by Fe and Al. While for SS aggregation the applied current ranges from 0.5-3 A and inflow rate was tested from 250 to 500 L/h. The pH of outflows increased by increasing applied current and both of these parameters were found a positive increase in the amount of SS aggregations after EC treatment. Furthermore, the COD removal efficiency was found to be 56-57 % and 12-18 % in case Fe and Al electrode respectively after EC treatment. The results showed that applied current is the most effective parameter, whereas the aluminium electrodes have produced more amounts of flocs and bubbles in comparison to iron electrodes at similar amount of current density.
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[1]
Akanksha Akanksha, 2014, International Journal of Environmental Sciences, V4, P519
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Univ Santa Cruz do Sul, Ind Chem Students, BR-96815900 Santa Cruz Do Sul, RS, BrazilUniv Santa Cruz do Sul, Ind Chem Students, BR-96815900 Santa Cruz Do Sul, RS, Brazil
Baierle, Felipe
;
John, Danielle K.
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Univ Santa Cruz do Sul, Ind Chem Students, BR-96815900 Santa Cruz Do Sul, RS, BrazilUniv Santa Cruz do Sul, Ind Chem Students, BR-96815900 Santa Cruz Do Sul, RS, Brazil
John, Danielle K.
;
Souza, Maiara P.
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Univ Santa Cruz do Sul, Ind Chem Students, BR-96815900 Santa Cruz Do Sul, RS, BrazilUniv Santa Cruz do Sul, Ind Chem Students, BR-96815900 Santa Cruz Do Sul, RS, Brazil
Souza, Maiara P.
;
Bjerk, Thiago R.
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h-index: 0
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Univ Santa Cruz do Sul, Post Grad Program Environm Technol, BR-96815900 Santa Cruz Do Sul, RS, BrazilUniv Santa Cruz do Sul, Ind Chem Students, BR-96815900 Santa Cruz Do Sul, RS, Brazil
Bjerk, Thiago R.
;
Moraes, Maria S. A.
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h-index: 0
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Univ Santa Cruz do Sul, Post Grad Program Environm Technol, BR-96815900 Santa Cruz Do Sul, RS, BrazilUniv Santa Cruz do Sul, Ind Chem Students, BR-96815900 Santa Cruz Do Sul, RS, Brazil
Moraes, Maria S. A.
;
Hoeltz, Michele
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Univ Santa Cruz do Sul, Post Grad Program Environm Technol, BR-96815900 Santa Cruz Do Sul, RS, BrazilUniv Santa Cruz do Sul, Ind Chem Students, BR-96815900 Santa Cruz Do Sul, RS, Brazil
Hoeltz, Michele
;
Rohlfes, Ana L. B.
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Univ Santa Cruz do Sul, Dept Chem & Phys, BR-96815900 Santa Cruz Do Sul, RS, BrazilUniv Santa Cruz do Sul, Ind Chem Students, BR-96815900 Santa Cruz Do Sul, RS, Brazil
Rohlfes, Ana L. B.
;
Camargo, Maria Emilia
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Univ Santa Cruz do Sul, Post Grad Program Environm Technol, BR-96815900 Santa Cruz Do Sul, RS, BrazilUniv Santa Cruz do Sul, Ind Chem Students, BR-96815900 Santa Cruz Do Sul, RS, Brazil
Camargo, Maria Emilia
;
Corbellini, Valeriano A.
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Univ Santa Cruz do Sul, Post Grad Program Environm Technol, BR-96815900 Santa Cruz Do Sul, RS, BrazilUniv Santa Cruz do Sul, Ind Chem Students, BR-96815900 Santa Cruz Do Sul, RS, Brazil
Corbellini, Valeriano A.
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Schneider, Rosana C. S.
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Univ Santa Cruz do Sul, Post Grad Program Environm Technol, BR-96815900 Santa Cruz Do Sul, RS, Brazil
Univ Santa Cruz do Sul, Dept Chem & Phys, BR-96815900 Santa Cruz Do Sul, RS, BrazilUniv Santa Cruz do Sul, Ind Chem Students, BR-96815900 Santa Cruz Do Sul, RS, Brazil
机构:
Hebrew Univ Jerusalem, Robert H Smith Fac Agr Food & Environm, Dept Soil & Water Sci, IL-76100 Rehovot, IsraelHebrew Univ Jerusalem, Robert H Smith Fac Agr Food & Environm, Dept Soil & Water Sci, IL-76100 Rehovot, Israel
Ben Sasson, Moshe
;
Calmano, Wolfgang
论文数: 0引用数: 0
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机构:
Tech Univ Hamburg, Inst Environm Technol & Energy Econ, D-21073 Hamburg, GermanyHebrew Univ Jerusalem, Robert H Smith Fac Agr Food & Environm, Dept Soil & Water Sci, IL-76100 Rehovot, Israel
Calmano, Wolfgang
;
Adin, Avner
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Hebrew Univ Jerusalem, Robert H Smith Fac Agr Food & Environm, Dept Soil & Water Sci, IL-76100 Rehovot, IsraelHebrew Univ Jerusalem, Robert H Smith Fac Agr Food & Environm, Dept Soil & Water Sci, IL-76100 Rehovot, Israel
机构:
Univ Santa Cruz do Sul, Ind Chem Students, BR-96815900 Santa Cruz Do Sul, RS, BrazilUniv Santa Cruz do Sul, Ind Chem Students, BR-96815900 Santa Cruz Do Sul, RS, Brazil
Baierle, Felipe
;
John, Danielle K.
论文数: 0引用数: 0
h-index: 0
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Univ Santa Cruz do Sul, Ind Chem Students, BR-96815900 Santa Cruz Do Sul, RS, BrazilUniv Santa Cruz do Sul, Ind Chem Students, BR-96815900 Santa Cruz Do Sul, RS, Brazil
John, Danielle K.
;
Souza, Maiara P.
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Univ Santa Cruz do Sul, Ind Chem Students, BR-96815900 Santa Cruz Do Sul, RS, BrazilUniv Santa Cruz do Sul, Ind Chem Students, BR-96815900 Santa Cruz Do Sul, RS, Brazil
Souza, Maiara P.
;
Bjerk, Thiago R.
论文数: 0引用数: 0
h-index: 0
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Univ Santa Cruz do Sul, Post Grad Program Environm Technol, BR-96815900 Santa Cruz Do Sul, RS, BrazilUniv Santa Cruz do Sul, Ind Chem Students, BR-96815900 Santa Cruz Do Sul, RS, Brazil
Bjerk, Thiago R.
;
Moraes, Maria S. A.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Santa Cruz do Sul, Post Grad Program Environm Technol, BR-96815900 Santa Cruz Do Sul, RS, BrazilUniv Santa Cruz do Sul, Ind Chem Students, BR-96815900 Santa Cruz Do Sul, RS, Brazil
Moraes, Maria S. A.
;
Hoeltz, Michele
论文数: 0引用数: 0
h-index: 0
机构:
Univ Santa Cruz do Sul, Post Grad Program Environm Technol, BR-96815900 Santa Cruz Do Sul, RS, BrazilUniv Santa Cruz do Sul, Ind Chem Students, BR-96815900 Santa Cruz Do Sul, RS, Brazil
Hoeltz, Michele
;
Rohlfes, Ana L. B.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Santa Cruz do Sul, Dept Chem & Phys, BR-96815900 Santa Cruz Do Sul, RS, BrazilUniv Santa Cruz do Sul, Ind Chem Students, BR-96815900 Santa Cruz Do Sul, RS, Brazil
Rohlfes, Ana L. B.
;
Camargo, Maria Emilia
论文数: 0引用数: 0
h-index: 0
机构:
Univ Santa Cruz do Sul, Post Grad Program Environm Technol, BR-96815900 Santa Cruz Do Sul, RS, BrazilUniv Santa Cruz do Sul, Ind Chem Students, BR-96815900 Santa Cruz Do Sul, RS, Brazil
Camargo, Maria Emilia
;
Corbellini, Valeriano A.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Santa Cruz do Sul, Post Grad Program Environm Technol, BR-96815900 Santa Cruz Do Sul, RS, BrazilUniv Santa Cruz do Sul, Ind Chem Students, BR-96815900 Santa Cruz Do Sul, RS, Brazil
Corbellini, Valeriano A.
;
Schneider, Rosana C. S.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Santa Cruz do Sul, Post Grad Program Environm Technol, BR-96815900 Santa Cruz Do Sul, RS, Brazil
Univ Santa Cruz do Sul, Dept Chem & Phys, BR-96815900 Santa Cruz Do Sul, RS, BrazilUniv Santa Cruz do Sul, Ind Chem Students, BR-96815900 Santa Cruz Do Sul, RS, Brazil
机构:
Hebrew Univ Jerusalem, Robert H Smith Fac Agr Food & Environm, Dept Soil & Water Sci, IL-76100 Rehovot, IsraelHebrew Univ Jerusalem, Robert H Smith Fac Agr Food & Environm, Dept Soil & Water Sci, IL-76100 Rehovot, Israel
Ben Sasson, Moshe
;
Calmano, Wolfgang
论文数: 0引用数: 0
h-index: 0
机构:
Tech Univ Hamburg, Inst Environm Technol & Energy Econ, D-21073 Hamburg, GermanyHebrew Univ Jerusalem, Robert H Smith Fac Agr Food & Environm, Dept Soil & Water Sci, IL-76100 Rehovot, Israel
Calmano, Wolfgang
;
Adin, Avner
论文数: 0引用数: 0
h-index: 0
机构:
Hebrew Univ Jerusalem, Robert H Smith Fac Agr Food & Environm, Dept Soil & Water Sci, IL-76100 Rehovot, IsraelHebrew Univ Jerusalem, Robert H Smith Fac Agr Food & Environm, Dept Soil & Water Sci, IL-76100 Rehovot, Israel