一种用于去除家禽屠宰场废水中悬浮固体、脂质和蛋白质物质的生物絮凝剂支撑溶解气浮系统。

A bioflocculant-supported dissolved air flotation system for the removal of suspended solids, lipids and protein matter from poultry slaughterhouse wastewater.

作者信息

Dlangamandla C, Ntwampe S K O, Basitere M

机构信息

Bioresource Engineering Research Group (BioERG), Department of Biotechnology, Cape Peninsula University of Technology, P.O. Box 652, Cape Town 8000, South Africa E-mail:

出版信息

Water Sci Technol. 2018 Aug;78(1-2):452-458. doi: 10.2166/wst.2018.324.

DOI:10.2166/wst.2018.324

PMID:30101780

Abstract

In this study, two previously identified isolates, i.e. Comamonas aquatica (BF-3) and Bacillus sp. BF-2, were determined to be suitable candidates to utilise in a bioflocculant-supported dissolved air flotation (Bio-DAF) system as a pretreatment system for poultry slaughterhouse wastewater (PSW). A 2% (v/v) (bioflocculant:PSW) strategy was used for the DAF to reduce total suspended solids (TSS), lipids and proteins in the PSW, by supplementing the bioflocculants produced and the co-culture (C. aquatica BF-3 and Bacillus sp. BF-2) directly into the DAF. The Bio-DAF was able to reduce 91% TSS, 79% proteins and 93% lipids when the DAF system was operating at steady state, in comparison with a chemical DAF operated using 2% (v/v) alum that was able to only reduce 84% TSS, 71% proteins and 92% lipids. It was concluded that the Bio-DAF system worked efficiently for the removal of suspended solids, lipids and proteins, achieving better results than when alum was used.

摘要

在本研究中，两种先前鉴定出的菌株，即水生丛毛单胞菌（BF - 3）和芽孢杆菌属BF - 2，被确定为适用于生物絮凝剂支持的溶气气浮（Bio - DAF）系统的候选菌株，该系统可作为家禽屠宰场废水（PSW）的预处理系统。采用2%（v/v）（生物絮凝剂：PSW）的策略进行气浮，通过将产生的生物絮凝剂和共培养物（水生丛毛单胞菌BF - 3和芽孢杆菌属BF - 2）直接添加到气浮系统中，以降低PSW中的总悬浮固体（TSS）、脂质和蛋白质含量。与使用2%（v/v）明矾运行的化学气浮相比，当气浮系统处于稳定状态时，Bio - DAF能够降低91%的TSS、79%的蛋白质和93%的脂质，而化学气浮仅能降低84%的TSS、71%的蛋白质和92%的脂质。得出的结论是，Bio - DAF系统在去除悬浮固体、脂质和蛋白质方面工作高效，比使用明矾时取得了更好的效果。