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Performance evaluation and intensification of novel buoyant filter bioreactor with associated secondary treatment process for rice processing industries
Chemical Engineering and Processing: Process Intensification ( IF 4.3 ) Pub Date : 2021-09-06 , DOI: 10.1016/j.cep.2021.108619
Saharuba PulickalMannath 1, 2 , Partha Kundu 1, 2 , Evgenii Plotnikov 3 , Dmitrii Martemianov 4
Affiliation  

Rice being the staple food of a larger population in general and to the India in particular and most of the industries are adapting the parboiled process. Rice production by parboiled process required large amount of water and discharging huge amount of wastewater to environment. Thus, most of the rice industries were falling under red or orange category of highly polluted industry. In this context the present study was undertaken to evaluate the performance of an ETP at rice processing industry. The ETP employed a primary high rate anaerobic treatment system called Buoyant filter bioreactor (BFBR) followed by secondary chemical treatments, to meet the effluent standards. The overall percentage removal efficiency of ETP observed is COD (90%), Colour (93%), Iron (100%), phosphate (100%), turbidity (94%), TSS (50%) and BOD (99%). A sharp reduction of BOD from 1500 to 10 mg/l was observed upon BFBR treatment indicating the excellent working condition of BFBR. The final effluent coming out from ETP meets the criteria for Permissible Limit as per ISI,1977 (On land of irrigation) and Permissible Limit as per ISI 1974 (In land surface water) which indicates the performance of the developed ETP is satisfactory.



中文翻译:

新型浮力过滤生物反应器及相关二级处理工艺用于水稻加工业的性能评价和强化

大米通常是更多人口的主食,尤其是印度,大多数行业都在适应预煮过程。用蒸谷法生产水稻需要大量的水,并排放大量废水到环境中。因此,大多数稻米行业都属于高污染行业的红色或橙色类别。在此背景下,本研究旨在评估 ETP 在大米加工业中的表现。ETP 采用称为浮力过滤生物反应器 (BFBR) 的初级高速厌氧处理系统,然后进行二级化学处理,以满足出水标准。观察到的 ETP 的整体去除率百分比是 COD (90%)、颜色 (93%)、铁 (100%)、磷酸盐 (100%)、浊度 (94%)、TSS (50%) 和 BOD (99%) . 在 BFBR 处理后观察到 BOD 从 1500 急剧下降到 10 mg/l,表明 BFBR 的工作条件非常好。从 ETP 流出的最终出水符合 ISI 1977(灌溉土地上)的允许限值标准和 ISI 1974(地表水中)的许可限值标准,表明开发的 ETP 的性能令人满意。

更新日期:2021-09-20
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