Sequencing batch reactor treatment of leather tanning industry wastewaters

被引：0

作者：

Tünay, O ^{[1
]}

Kabdasli, I ^{[1
]}

Gün, Ö ^{[1
]}

机构：

[1] Istanbul Tech Univ, Fac Civil Engn, Dept Environm Engn, TR-34469 Istanbul, Turkey

来源：

FRESENIUS ENVIRONMENTAL BULLETIN | 2004年 / 13卷 / 10期

关键词：

activated sludge settling; COD removal; leather tanning wastewater; organic loading; sequencing batch reactor; volatile suspended solids (VSS);

D O I：

暂无

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Sequencing batch reactor (SBR) technology has been widely applied for the treatment of industrial wastewater. However, treatment applications for highly polluted wastewaters are rather limited. In this paper treatability of leather tanning wastewaters using SBR was experimentally studied. Wastewater was provided from primary settling effluent of Istanbul Leather Tanners District Treatment Plant. Wastewater COD varied between 1 050-2 900 mg L-1. SBR system was operated for 8, 12 and 24 hours cycles. COD removals up to 85% were obtained with organic loading as high as 1.45 kg COD (kg VSS.day(-1)) in 8-hour and 12-hour cycles. Settling characteristic was good, but suspended solids' concentration in the effluent was high. High loaded systems proved to be as effective as low organic loadings in terms of COD removal. Low loading systems working around 0.4 kg COD (kg VSS.day)(-1) provided 70-83 % COD removal due to inert COD production.

引用

页码：945 / 950

页数：6

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