[1]宋田翼.污水处理厂约翰内斯堡（JHB）工艺应用实例[J].中国给水排水,2021,37(24):74-77.
　SONG Tian-yi.A Case of Johannesburg（JHB） Process in a Wastewater Treatment Plant[J].China Water & Wastewater,2021,37(24):74-77.
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污水处理厂约翰内斯堡（JHB）工艺应用实例

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第37卷 期数: 2021年第24期 页码: 74-77 栏目: 出版日期: 2021-12-17
Title:
A Case of Johannesburg（JHB） Process in a Wastewater Treatment Plant
作者:
宋田翼
(山东省城建设计院,山东济南250000)
Author(s):
SONG Tian-yi
(Shandong Urban Construction Design Institute, Jinan 250000, China)
关键词:
JHB工艺; 多点布水; 除磷脱氮
Keywords:
JHB process; multi-point water distribution; phosphorus and nitrogen removal
摘要:
河南省孟州市污水处理厂二期扩建工程规模为2.5×104 m3/d，生化处理单元采用约翰内斯堡工艺（Johannesburg工艺, 简称JHB工艺），该工艺属于改良AAO工艺的一种。二沉池污泥回流至预缺氧池，既可以优先利用进水中优质碳源进行反硝化除氮，还可以减轻传统AAO工艺中硝酸盐对厌氧段释磷的影响。为强化除磷脱氮效果，同时采取多点布水设计、加大缺氧池反应时间、提高硝化液回流比、投加外部碳源等措施，实现了比一期工程更好的除磷脱氮效果，出水水质明显优于一期工程氧化沟工艺。深度处理采用机械混凝、斜板沉淀及纤维转盘过滤工艺，运行效果良好，各出水指标均稳定达到《城镇污水处理厂污染物排放标准》（GB 18918—2002）一级A标准。
Abstract:
The design scale of the phase Ⅱ expansion project of Mengzhou wastewater treatment plant in Henan Province is 2.5×104 m3/d. The Johannesburg process (JHB), which is one of the modified AAO process, is adopted in the biochemical treatment unit. When the sludge from the secondary sedimentation tank is returned to the pre-anoxic tank, the high-quality carbon source in the influent can be preferentially used for denitrification, and the influence of nitrate on phosphorus release in the anaerobic section in the traditional AAO process can be alleviated. The measures such as design of multi-point water distribution, increasing the reaction time of the anoxic tank, increasing the nitrification liquid reflux ratio, adding external carbon source were adopted to enhance the phosphorus and nitrogen removal efficiency. The phosphorus and nitrogen removal performance of the phase Ⅱ expansion project was better than that of the phase Ⅰ project, and the effluent quality was obviously better than that of the oxidation ditch process of the phase Ⅰ project. The advanced treatment system adopts the mechanical coagulation, inclined plate precipitation and fiber rotary filter processes, and the treatment performance is good. The effluent indicators all stably meet the requirements of the first level A criteria specified in Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002).
更新日期/Last Update: 2021-12-17