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Treatment of Sugar Industry Effluent Through SBR Followed by Electrocoagulation
Sugar Tech ( IF 1.9 ) Pub Date : 2019-10-22 , DOI: 10.1007/s12355-019-00777-y
Shreyas Gondudey , Parmesh Kumar Chaudhari

Sugar industry effluent (SIE) is characterized as high organic load. The aim of present work is to treat SIE in sequential batch reactor (SBR). Effect of hydraulic retention time (HRT) on COD reduction was studied at instantaneous fill condition. Maximum 67.2% COD removal was achieved at HRT of 2.33 days (d) in 10 h of treatment. At optimum HRT of 2.33 days, the fill time (tF) of the effluent was varied to treat it, in which tF of 1.5 h was evaluated to optimum for maximum of 91.66% COD removal of initial COD of 4800 mg/dm3 achieved in 10 h of treatment. The effluent treated in SBR was further followed by electrocoagulation (EC) using mild steel (MS) electrode. The initial COD of 640 mg/dm3 was reduced to 77 mg/dm3 at operating condition of current density 69.44 A/m2 (2A) and treatment time (tR) ~ 90 min. The kinetics of degradation of SIE in SBR was also evaluated.

中文翻译:

SBR-电凝法处理制糖工业废水

制糖工业废水(SIE)的特点是有机负荷高。当前工作的目的是在顺序间歇反应器(SBR)中处理SIE。在瞬时填充条件下,研究了水力停留时间(HRT)对COD减少的影响。在治疗10小时内,HRT为2.33天(d)时,最大COD去除率为67.2%。在最佳HRT为2.33天时,改变废水的填充时间(t F)进行处理,其中1.5 h的t F被评估为最佳,最大初始COD去除4800 mg / dm 3的最大COD去除率为91.66%3在10小时的治疗中即可达到。在SBR中处理的废水再用低碳钢(MS)电极进行电凝(EC)。初始COD为640 mg / dm 3在电流密度69.44 A / m 2(2A)和处理时间(t R)〜90分钟的工作条件下,其浓度降至77 mg / dm 3。还评估了SIE在SBR中降解的动力学。
更新日期:2019-10-22
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