SUN Ai-hua,CHEN Bo,LIU Shen.Treatment of Leachate from Waste Incineration Plant by a Combined Process of IOC, A/O, and UF/NF/RO[J].China Water & Wastewater,2021,37(16):112-118.
IOC—A/O—UF/NF/RO组合工艺处理垃圾焚烧渗滤液
- Title:
- Treatment of Leachate from Waste Incineration Plant by a Combined Process of IOC, A/O, and UF/NF/RO
- Keywords:
- leachate; anaerobic reactor; ultrafiltration; nanofiltration; reverse osmosis
- 摘要:
- 常州某生活垃圾焚烧发电厂对收集的城镇居民生活垃圾发酵腐熟以提高热值，其间产生含高浓度有机物的渗滤液。渗滤液设计处理规模为300 m3/d，采用内外循环厌氧反应器（IOC）—A/O—UF/NF/RO组合处理工艺，出水水质执行《城市污水再生利用 工业用水水质》（GB/T 19923—2005）中敞开式循环冷却水系统补充水水质标准。IOC为企业自行研发的厌氧反应器，通过内、外循环系统的结合更好地适应高浓度渗滤液的处理。外置式管式UF与生物处理A/O系统组成MBR系统，能很好地去除有机物和总氮，MBR出水再经NF和RO处理后，保证最后出水水质达标。运行结果表明，该工艺对COD、NH3-N、TN和TP的去除率分别为99.99%、99.98%、99.24%和99.98%，出水相应指标分别为4.6、0.24、12.4和0.014 mg/L，均优于敞开式循环冷却水水质标准，可作补充水再利用。
- Abstract:
- In a certain domestic waste incineration power plant in Changzhou, the collected urban domestic wastes are fermented and decomposed to improve the calorific value, during which leachate containing high concentration of organic matter is produced. The leachate was treated by a combined process of inner and outer cycling anaerobic reactor (IOC), A/O, and UF/NF/RO with designed treatment capacity of 300 m3/d, and the effluent quality follows the standard of supplementary water quality for open type circulating cooling water system in The Reuse of Urban Recycling Water—Water Quality Standard for Industrial Uses(GB/T 19923-2005). The self-developed IOC can better adapt to the treatment of high concentration leachate through the combination of inner and outer circulation systems. The MBR system constituted with the external tubular UF and the biological treatment A/O system can remove organics and total nitrogen well. Then the MBR effluent is treated by nanofiltration and reverse osmosis to better ensure that the final effluent quality can better meet the standard requirements. It is found that the removal rates of COD, NH3-N, TN and TP are 99.99%, 99.98%, 99.24% and 99.98%, respectively, and the corresponding effluent values are 4.6, 0.24, 12.4 and 0.014 mg/L, respectively. These results are superior to the standard of the open type circulating cooling water quality, thereby the effluent can be reused for supplementary.
相似文献/References:
[1]王怡然,李江,李彦澄,等.贵阳某垃圾焚烧发电厂渗滤液处理回用工程设计[J].中国给水排水,2021,37(6):91.
WANG Yi-ran,LI Jiang,LI Yan-cheng,et al.Design of Leachate Treatment and Reuse Project for a Solid Waste Incineration Power Plant in Guiyang[J].China Water & Wastewater,2021,37(16):91.
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[3]王锦雪,李玲,顾旭卿,等.垃圾中转站渗滤液处理厂工程设计[J].中国给水排水,2023,39(22):93.
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