采用序批式活性污泥法（SBR）对高浓度含酚废水进行生物降解。

Biodegradation of high strength phenolic wastewater using SBR.

作者信息

Yoong E T, Lant P A

机构信息

Faculty of Engineering and Surveying, University of Southern Queensland, Toowoomba, QLD 4350, Australia.

出版信息

Water Sci Technol. 2001;43(3):299-306.

PMID:11381920

Abstract

This investigation demonstrates the capability of a bench-scale sequencing batch reactor (SBR) to biodegrade an inhibitory substrate at a high loading rate. A SBR loading rate of 3.12 kg phenol.m3 d-1 (2.1 g COD.g-1 MLVSS d-1) with a COD removal efficiency of 97% at a SRT of 4 days and a HRT of 10 hours was achieved; this rate was not reached before. The SBR was operated at 4 hours cycle, including 3 hours react phase. The synthetic wastewater of 1300 mg/L phenol was the sole carbon source. Oxygen uptake rates (OUR) were monitored in-situ at various stages of the SBR. The oxygen mass transfer coefficient, KLa, of 12.6 h-1 was derived from respirometry. Use of respirometry in SBR aided the tracking of the soluble substrate through OUR.

摘要

本研究证明了实验室规模的序批式反应器（SBR）在高负荷率下对抑制性底物进行生物降解的能力。在4天的污泥龄（SRT）和10小时的水力停留时间（HRT）下，实现了3.12 kg苯酚·m³·d⁻¹（2.1 g化学需氧量·g⁻¹混合液挥发性悬浮固体·d⁻¹）的SBR负荷率，化学需氧量去除效率达到97%；该速率此前未曾达到。SBR以4小时的周期运行，包括3小时的反应阶段。1300 mg/L苯酚的合成废水是唯一的碳源。在SBR的各个阶段现场监测了氧摄取率（OUR）。通过呼吸测定法得出氧传质系数KLa为12.6 h⁻¹。在SBR中使用呼吸测定法有助于通过OUR追踪可溶性底物。