[1]孟继安,钟达文,孙昊,等.SEUE-WAO污泥湿式氧化工艺的生产性试验研究[J].中国给水排水,2023,39(15):1-7.
　MENGJi-an,ZHONGDa-wen,SUNHao,et al.Full-scale Study on SEUE-WAO Sludge Wet Air Oxidation Process[J].China Water & Wastewater,2023,39(15):1-7.
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SEUE-WAO污泥湿式氧化工艺的生产性试验研究

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第39卷 期数: 2023年第15期 页码: 1-7 栏目: 出版日期: 2023-08-01
Title:
Full-scale Study on SEUE-WAO Sludge Wet Air Oxidation Process
作者:
孟继安1,2， 钟达文3， 孙昊2,4， 秦伟5， 戴丁军6
（1.清华大学 航天航空学院，北京 100084；2.清华苏州环境创新研究院，江苏 苏州 215000；3.华北电力大学 核科学与工程学院，北京 102206；4.江南大学 机械工程学院，江苏 无锡 214000；5.清华大学环境学院 环境模拟与污染控制国家重点联合实验室，北京 100084；6.宁波市哈雷换热设备有限公司，浙江 宁波 315506）
Author(s):
MENG　Ji-an1，2， ZHONG　Da-wen3， SUN　Hao2，4， QIN　Wei5， DAI　Ding-jun6
（1. School of Aerospace Engineering， Tsinghua University， Beijing 100084， China； 2. Tsinghua Suzhou Environmental Innovation Research Institute， Suzhou 215000， China； 3. School of Nuclear Science and Engineering， North China Electric Power University， Beijing 102206， China； 4. School of Mechanical Engineering， Jiangnan University， Wuxi 214000， China； 5. State Key Joint Laboratory of Environmental Simulation and Pollution Control， School of Environment， Tsinghua University， Beijing 100084， China； 6. Ningbo Hrale Plate Heat Exchanger Co. Ltd.， Ningbo 315506， China）
关键词:
污泥处理;  湿式氧化;  减量化;  资源化
Keywords:
sludge treatment;  wet air oxidation;  reduction;  resource utilization
摘要:
研究开发了一种新型的污泥湿式氧化处理工艺即SEUE-WAO工艺，并开展了规模为25 t/d（污泥含水率为80%）的生产性试验。该工艺在高温、高压、富氧环境下对微生物细胞进行破壁，使得有机物发生水解和氧化反应而生成小分子有机酸、CO2和水，从而实现污泥的减量化、无害化和稳定化；通过换热反应一体化技术深度回收反应热量，电耗≤60 kW·h/t（以湿泥计），在不添加化学药剂的情况下脱水泥饼含水率<35%。同时，脱水泥饼的处置路径灵活性强，可用于园林绿化以及包装类纸板、陶粒和制砖等建材生产的原料添加物，也可以用于焚烧；分离液具有用作污水处理厂反硝化碳源的潜力。生产性试验证明，该工艺具有超低能耗、安全可靠性高、环境友好、处理周期短、占地面积小、碳减排显著等优点。
Abstract:
This paper developed a new sludge wet air oxidation process, namely SEUE-WAO process, and carried out a production test with scale of 25 t/d (sludge moisture content was 80%). The process broke the microbial cell walls in high temperature, high pressure and oxygen-rich environment, resulting in the hydrolysis and oxidation of organic matters to generate small molecular organic acids, CO2 and water, so as to achieve the reduction, harmlessness and stabilization of sludge. The reaction heat was deeply recovered through the integrated heat exchange-reaction technology. The power consumption was less than 60 kW·h/t, and the moisture content of the dewatered sludge cake was decreased to less than 35% without adding chemical agents. The disposal method of the sludge cake was flexible, which could be used for landscaping and incineration, and used as raw material additives for the production of packaging cardboard and building materials such as ceramsite and brick. The separation liquid had the potential to be used as denitrifying carbon sources in wastewater treatment plants. The production test showed that the process had the advantages of ultra-low energy consumption, high safety and reliability, environmental friendliness, short treatment cycle, small footprint area and significant carbon emission reduction.

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更新日期/Last Update: 2023-08-01