THERMAL-ALKALINE TREATMENT OF SEWAGE SLUDGE AND ITS ENHANCEMENT ON ANAEROBIC SLUDGE DIGESTION

TANG Xin-yi; CHEN Xiang-yu; XIAO Ben-yi; LIU Rong-zhan

doi:10.13205/j.hjgc.202205031

Volume 40 Issue 5

Jul. 2022

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2022 > 40(5): 218-226

TANG Xin-yi, CHEN Xiang-yu, XIAO Ben-yi, LIU Rong-zhan. THERMAL-ALKALINE TREATMENT OF SEWAGE SLUDGE AND ITS ENHANCEMENT ON ANAEROBIC SLUDGE DIGESTION[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(5): 218-226. doi: 10.13205/j.hjgc.202205031

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TANG Xin-yi, CHEN Xiang-yu, XIAO Ben-yi, LIU Rong-zhan. THERMAL-ALKALINE TREATMENT OF SEWAGE SLUDGE AND ITS ENHANCEMENT ON ANAEROBIC SLUDGE DIGESTION[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(5): 218-226. doi: 10.13205/j.hjgc.202205031

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THERMAL-ALKALINE TREATMENT OF SEWAGE SLUDGE AND ITS ENHANCEMENT ON ANAEROBIC SLUDGE DIGESTION

doi: 10.13205/j.hjgc.202205031

1. Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China;
3. College of Textiles and Clothing, Qingdao University, Qingdao 266071, China

Received Date: 2021-06-05
Available Online: 2022-07-02

Abstract

Abstract

Huge amounts of sludge are produced in wastewater treatment, and the treatment and disposal of sewage sludge had become a rising challenge for the wastewater plant. Anaerobic digestion is a traditional method for sewage sludge treatment, which has some shortages. Recent research showed that thermal-alkaline pretreatment could enhance the anaerobic digestion of sewage sludge. In this study, the research progress of thermal-alkaline pretreatment of sludge was thoroughly reviewed, including the mechanism of thermal-alkaline pretreatment, the impact of thermal-alkaline pretreatment on the sludge properties and anaerobic digestion and the influencing factors. And the feasibility of thermal-alkaline pretreatment for enhancing anaerobic digestion of sewage sludge was discussed through energy consumption analysis. Finally, the enhancement of thermal-alkaline pretreatment on anaerobic digestion and its prospects and problems were also discussed.
- thermal-alkaline pretreatment,
- excess sludge,
- anaerobic digestion,
- enhancement,
- influencing factor

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References(48)

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