Slaughterhouse wastewater treatment by combined anaerobic baffled reactor and anaerobic filter: study of OLR and HRT optimization in ABR/AF reactors
Journal: Environmental Health Engineering and Management Journal (Vol.5, No. 3)Publication Date: 2018-10-17
Authors : Zabihollah Yousefi Mohammad Behbodi Reza Ali Mohammadpour;
Page : 137-142
Keywords : Waste water; Slaughterhouse; Anaerobic treatment;
Abstract
Background: Slaughterhouse wastewater (SWW) is hardly treated due to the large amount of organic matter, nutrients and suspended solids. These materials are naturally decomposed through biological processes, and then environmental pollution, transmission of pathogens and problems become smelled. Conventional purification methods require high investment costs, high energy consumption and expert workforce. Therefore, the efficient and sufficient treatment of SWW with low cost, efficient construction and operation is important. Methods: A combined anaerobic system consisting of three pilot-scale anaerobic baffled reactors (ABRs) in the first stage and three anaerobic filters (AFs) were used to treat SWW. The ABR reactors arranged at three hydraulic retention times (HRTs) of 12, 18 and 24 hours and organic loading rates (OLRs) of 4, 7 and 10 kg/m3/d. The OLR applied for ABR reactors, was 0.5 to 1.55 kg COD/m3/d. Results: Evaluation of the ABR reactor indicated that this reactor at OLR of 7 and 10 kg COD/m3/d and HRT of 18 hours, had removal efficiency of 83.29% and 85.79%, respectively. AF reactor, at OLR of 0.981, 0.576 and 0.561 kg COD/m3/d and HRT of 36 hours, had removal efficiency of 79.39%, 74.09% and 63.14%, respectively.
Other Latest Articles
- Preliminary Study on the Antifungal and Antimicrobial Activities of Some Medicinal Plants of Turkey
- Potential Antifungal Activity of Fresh Garlic Cloves (Allium sativum L.) from Sudan
- Effects of Two Disinfectants and Two Growth Regulators on in vitro Propagation of Smooth Cayenne and Sugarloaf Cultivars of Pineapple (Ananas comosus (L) Mill var. comosus)
- Genotoxic and Biochemica Effects of Consumption of Heavy Metal Contaminated Fish and Its Reversal Using Zinc Supplements in Rats
- Characterization of Chromophile Fungal Isolates from Landfill Polluted By Tannery Effluent
Last modified: 2018-11-03 16:40:33