Greywater treatment with biological aerated filter (BAF) for urban water reuse

被引:2
作者
Meda A. [1 ]
Cornel P. [1 ]
机构
[1] Technische Universität Darmstadt, 64287 Darmstadt
来源
Water Science and Technology: Water Supply | 2010年 / 10卷 / 06期
关键词
Biological aerated filter; Greywater treatment; Reactor volume; Water reuse;
D O I
10.2166/ws.2010.627
中图分类号
学科分类号
摘要
Greywater is an excellent resource for service water in intra-urban reuse. By substituting fresh water with appropriately treated greywater, it is possible to save 30-50% of fresh water. In this paper, an up-flow pilot biological aerated filter (BAF) is tested for the treatment of synthetic greywater and the design parameters are determined. An organic load of 8 kg COD/(m3 d) allows to achieving a good effluent quality with regard to COD, suspended solids, and anionic surfactants. By reducing the organic load to 5 kg COD/(m3 d) full nitrification is achieved as well. A process set-up for a full-scale BAF greywater treatment plant is proposed and dimensioned using the parameters from the pilot plant tests. Here, the required specific volume is approx. 3 L/C for the reactor and 16 L/C for the storage tanks. This feature make the BAF a compact process which can be successfully integrated in intra-urban water reuse schemes. © IWA Publishing 2010.
引用
收藏
页码:907 / 913
页数:6
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