Application of double circulation anaerobic process in high concentration dyeing wastewater treatment

doi:10.19965/j.cnki.iwt.2022-0848

Abstract

Key words: double circulation anaerobic reactor, dyeing wastewater, refractory

CLC Number:

X703.1

Weisheng LIU, Xiaopeng WANG, Geng WANG, Tong LIU, Yan ZHANG, Shoujian ZHANG. Application of double circulation anaerobic process in high concentration dyeing wastewater treatment[J]. Industrial Water Treatment, 2023, 43(7): 217-222.

刘维盛, 王晓鹏, 王赓, 刘通, 张岩, 张守健. 双循环厌氧工艺在印染高浓废水处理中的应用[J]. 工业水处理, 2023, 43(7): 217-222.

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URL: https://www.iwt.cn/EN/10.19965/j.cnki.iwt.2022-0848

https://www.iwt.cn/EN/Y2023/V43/I7/217

Figures/Tables 7

Fig. 1 DC anaerobic technological process

Fig.2 COD，chroma，pH and temperature of DC anaerobic reactor inlet and outlet

Fig.3 Biogas production and VFA in effluent of DC anaerobic reactor

Table 1 Dosing amount and sludge output before and after DC anaerobic reactor operation

对比	硫酸亚铁/（t·d^-1）	石灰/（t·d^-1）	剩余污泥（含水率80%）产量/（t·d^-1）	物化污泥（含水率60%）产量/（t·d^-1）
DC投运前	4.8	2.1	1.8	11.9
DC投运后	2.8	0	1.0	4.9

Table 2 Saving of agent cost and sludge disposal cost after DC anaerobic reactor operation

	硫酸亚铁	石灰	剩余污泥（含水率80%）	物化污泥（含水率60%）	合计
DC投运后的消减量/（t·d^-1）	2.0	2.1	0.8	7.0
单价/（元·t^-1）	400.0	600.0	120.0*	150.0^*
日节约成本/（元·d^-1）	800.0	1 260.0	120.0	1 050.0	3 110.0
吨水节约成本/（元·t^-1）	0.4	0.63	0.06	0.525	1.615

Fig.4 COD，chroma，pH and temperature of DC anaerobic reactor inlet and outlet

Fig.5 Biogas production and VFA in effluent of DC anaerobic reactor

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