Batch electrochemical coagulation of real textile wastewater using Cu-SS and SS-Cu electrode combinations and its settleability aspects
| Autor: | Mahesh Shivaswamy, S Mahesh, Hanumanthappa Srikantha |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Biological Oxygen Demand Analysis
Environmental Engineering Sewage Chemistry Textiles Chemical oxygen demand chemistry.chemical_element Wastewater Electrochemistry Total dissolved solids Chloride Copper Settling Electrode medicine Electrodes Water Science and Technology medicine.drug Nuclear chemistry |
| Zdroj: | Water Science and Technology. 82:1467-1483 |
| ISSN: | 1996-9732 0273-1223 |
| DOI: | 10.2166/wst.2020.426 |
| Popis: | Copper and stainless steel electrodes were used in batch electrochemical coagulation (BECC) for the treatment of real textile wastewater using 16 electrode combinations. Out of 16 Cu-SS and SS-Cu combinations (eight combinations each), only 4SS and 3SS-1Cu electrodes operated at cell voltage of 18 V and current density of 180 A/m2 gave maximum color and chemical oxygen demand (COD) removals. The COD removal was observed to be 89.37% for 4SS and 72.34% for 3SS 1Cu electrodes from CODo 3,012 mg/L. Color removal was 97% and 98% from its initial value of 1,000 Pt-Co unit for 4SS and 3SS-1Cu combinations. Water quality parameters like total dissolved solids, chloride, nitrate, phosphate, and sulphate reduced from their initial values while using all 4SS and 3SS-1Cu electrode arrangements. Other control factors exercised for optimal operations were ECC floc settling pattern and sludge volume index (SVI). SVI values were found to be |
| Databáze: | OpenAIRE |
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