Anaerobic on-site treatment of black water and dairy parlour wastewater in UASB-septic tanks at low temperatures

被引：64

作者：

Luostarinen, SA ^{[1
]}

Rintala, JA ^{[1
]}

机构：

[1] Univ Jyvaskyla, Dept Biol & Environm Sci, FIN-40014 Jyvaskyla, Finland

来源：

WATER RESEARCH | 2005年 / 39卷 / 2-3期

关键词：

anaerobic wastewater treatment; black water; dairy parlour wastewater; low temperature; on site; UASB-septic tank;

D O I：

10.1016/j.watres.2004.10.006

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Anaerobic on-site treatment of synthetic black water (BW) and dairy parlour wastewater (DPWW) was studied in two-phased upflow anaerobic sludge blanket (UASB)-septic tanks at low temperatures (10-20degreesC). At all temperatures, total chemical oxygen demand (CODt) removal was above 90% with BW and above 80% with DPWW and removal of total suspended solids (TSS) above 90% with both wastewaters. Moreover, dissolved COD (CODdis) removal was approx. 70% with both wastewaters indicating good biological activity of the sludges. With BW, a single-phased reactor was found sufficient for good COD removals, while with DPWW, a two-phased process was required. Temperature optimum of reactor sludges was still 35degreesC after long (398d) operation. Most of the nutrients from BW were removed with TSS, while with DPWW nutrient removal was low. In conclusion, UASB-septic tank was found feasible for (pre)treatment of BW and DPWW at low temperatures. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：436 / 448

页数：13

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