INDUSTRIAL WASTEWATER TREATMENT AND ITS IMPACT ON WATER QUALITY"CASE STUDY | ||||
| Al-Azhar Bulletin of Science | ||||
| Article 1, Volume 2011, Issue 6, June 2011, Page 1-20 PDF (418.24 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/absb.2011.7169 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| MEDHAT El-MOSELHY1; SALAH A. ABO EL-ENEINa* 1; MOSTAFA M. EMARA1; MEDHAT M. El-MOSELHY1; DOAA H SHABAAN2 | ||||
| 1Chemistry Departmentm Faculty of Science, Ain Shams University, Cairo, Egypt. | ||||
| 2Science Center for detection and Remediation of environmental hazards, Al-Azhar University, Cairo, Egypt. | ||||
| Abstract | ||||
| Ceramic industry wastewaters not only contain high total suspended solids but also significant amounts of dissolved organics resulting in high BOD or COD loads. Suspended solids can be removed from the wastewater by chemical precipitation. However, dissolved BOD/COD compounds can only be removed by biological or chemical oxidation. Effluent wastewater from chemical sedimentation stage of ceramic industry was characterized and subjected to biological treatment in a laboratory scale activated sludge unit. Experiments were conducted at different conditions and solids retention times. The best results were obtained with mixed liquor suspended solids 3000 MLSS and 6 hrs. of solids retention times (sludge age) resulting in effluent COD and BOD concentration of 0 mg/l from a feed wastewater of 4000 mg/l COD and 150 mg/l BOD contents. | ||||
| Keywords | ||||
| Ceramic Industry; Wastewater treatment; aerobic and anaerobic techniques | ||||
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