A review of the upgrading technology for the A2/O process of municipal wastewater treatment plants under high discharge standards in China

doi:10.3969/j.issn.1000-5641.2021.04.007

Abstract

Abstract:

This paper provides an overview of the technical achievements in A²/O upgrading during the 11th and 12th Five-Year Plans as well as the current successful operation of the improved A²/O process. We summarize the measures used for upgrading the A²/O process of municipal wastewater treatment plants under high discharge standards with respect to in-situ optimization and advanced treatment. Finally, we review the operating state of representative A²/O upgrade demonstration projects and offer suggestions for optimization and promotion of the A²/O process.

Key words: high discharge standard, municipal wastewater treatment plant, A²/O, upgrading, demonstration project

CLC Number:

X522

Zheng WEI, Yanmei YANG, Rui WENG, Yan HE, Minsheng HUANG. A review of the upgrading technology for the A²/O process of municipal wastewater treatment plants under high discharge standards in China[J]. Journal of East China Normal University(Natural Science), 2021, 2021(4): 55-63.

Figures/Tables 4

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标准号	适用范围	类别		COD	氨氮	总氮	总磷
GB18918—2002 ^[13]	全国范围	一级A		50	5(8)	15	0.5
DB 32/1072—2018^[14]	江苏省太湖流域	一、二级保护区		40	3(5)	10(12)	0.3
DB 32/1072—2018^[14]	江苏省太湖流域	其他区域		50	4(6)	12(15)	0.5
DB 33/2169—2018^[15]	浙江省太湖流域	新建城镇污水厂		30	1.5(3)	10(12)	0.3
DB 33/2169—2018^[15]	浙江省太湖流域	现有城镇污水厂		40	2(4)	12(15)	0.3
DB 34/2710—2016^[16]	安徽省巢湖流域	现有城镇污水厂	Ⅰ类别	50	5(8)	15	0.5
		现有城镇污水厂	Ⅱ类别	100	5(8)	–	0.5
		新建城镇污水厂	Ⅰ类别	40	2(3)	10(12)	0.3
		新建城镇污水厂	Ⅱ类别	50	5	15	0.5
DB 5301/T 43—2020 ^[17]	昆明市	A级		20	1(1.5)	5(10)	0.05
		B级		30	1.5(3)	10(15)	0.3
		C级		40	3(5)	15	0.4
		D级		40	5(8)	15	0.5
		E级		70	–	–	2

A review of the upgrading technology for the A²/O process of municipal wastewater treatment plants under high discharge standards in China

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