Flax Retting Wastewater Part 1: Anaerobic Treatment by Using UASB Reactor
Flax Retting Wastewater Part 1: Anaerobic Treatment by Using UASB Reactor作者机构：Chemical Engineering & Pilot Plant Department Engineering Division National Research Center Dokki Cairo Egypt
出 版 物：《Natural Resources》 (自然资源（英文）)
年 卷 期：2012年第3卷第4期
页 面：191-200页
学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学]
主 题：UASB Flax Retting Wastewater COD Loading Rate COD and BOD Reduction
摘 要：The performance of UASB (Up-flow Anaerobic Sludge Blanket) reactor was investigated in the present study for treatment of flax retting wastewater. Batch and continuous experiments on a pilot scale were designed. The initial seed for granules (bacteria acclimation) formed earlier was from municipal sewage treatment plant with VSS of 18 - 20 g/L. Batch experiments proved that the sludge retention time (SRT) was 77 days. Under steady state conditions, continuous experiments were conducted at organic loading rates (OLRs) in the range of 1.2 to8.6 kgCODs m–3·d–1, where the hy- draulic retention time (HRT) decreased from 72 to 12 hrs. The results proved that the UASB technology provides good COD removal efficiency from 64.5% to 90.5% as COD loading rate decreased and good biogas production at proper food: micro-organism (F:M) ratios.
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