[1]杨军,占晨,李梓源,等.上海城市污水中有机物捕获及优质碳源转化特征[J].中国给水排水,2026,42(11):26-33.
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上海城市污水中有机物捕获及优质碳源转化特征

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第42卷 期数: 2026年第11期 页码: 26-33 栏目: 出版日期: 2026-06-01
Title:
Characteristics of Organic Matter Recoverability and High-quality Carbon Source Conversion in Shanghai Municipal Wastewater
作者:
杨军1， 占晨1,2， 李梓源1,2， 李彭2， 郭恰3， 何义亮2
（1.兰州交通大学 环境与市政工程学院，甘肃 兰州 730070；2.上海交通大学 环境科学与工程学院，上海 200240；3.上海城市水资源开发利用国家工程中心有限公司，上海201112）
Author(s):
YANG　Jun1， ZHAN　Chen1，2， LI　Ziyuan1，2， LI　Peng2， GUO　Qia3， HE　Yiliang2
（1. School of Environmental and Municipal Engineering， Lanzhou Jiaotong University， Lanzhou 730070， China； 2. School of Environmental Science and Engineering， Shanghai Jiao Tong University， Shanghai 200240， China； 3. Shanghai National Engineering Research Center of Urban Water Resources Co. Ltd.， Shanghai 201112， China）
关键词:
城市污水;  有机碳捕获;  污泥发酵;  聚合氯化铁
Keywords:
municipal wastewater;  organic carbon capture;  sludge fermentation;  polymeric ferric chloride
摘要:
在城市污水处理普遍面临进水碳源不足、外加碳源投加量持续上升的背景下，从进水中捕获有机碳并产酸，已成为污水资源化利用的有效途径。通过探究城市污水可捕获及优质碳源转化特征，评价城市污水的产酸潜力。对上海4座典型污水处理厂（HQ、SDK、ZY、BLG）污水使用聚合氯化铁（PFC）进行混凝沉淀，并对原水及混凝后的水样进行分级分析，探究沉淀物的发酵产酸效果。结果表明，污水厂进水TCOD浓度在80.8~298.8 mg/L范围，平均浓度为（148.1±16.3） mg/L；城市污水中PCOD占主要部分，比例为（52.59±6.26）%。PFC对TCOD的平均捕获率为（46.86±2.84）%，其中颗粒态有机物捕获效果最好，使用PFC混凝能够有效捕获水中的有机物。将浓缩污泥的VSS调整至15 g/L后，4座污水厂的平均产酸总量（以COD计）依次为（2 851.8±339.5）、（2 720.9±225.4）、（2 207.1±204.4）和（2 567.5±310.9） mg/L。PFC对溶解性磷的捕获效果较好，平均捕获率为69.6%；对溶解性氮的捕获效果有限，平均捕获率为17.1%。总之，上海市城市污水中的有机物以颗粒态为主，使用PFC可以有效截留其中的有机碳，且产酸效果良好，能为后续脱氮除磷过程提供优质碳源。
Abstract:
Against the backdrop of widespread influent carbon source shortage and continuously increasing external carbon source dosing in municipal wastewater treatment, capturing organic carbon from influent and converting it into volatile fatty acids (VFAs) has become an effective pathway for wastewater resource recovery. In this study, the capture potential and conversion characteristics of recoverable, high?quality carbon in municipal wastewater were investigated to evaluate its acidogenic potential. To this end, influent from four representative municipal wastewater treatment plants (HQ, SDK, ZY and BLG) in Shanghai was subjected to coagulation-sedimentation with polymeric ferric chloride (PFC). The raw and post?coagulation wastewater samples were then fractionated, and the acidogenic fermentation performance of the resulting precipitates was evaluated. The results showed that the influent total COD (TCOD) ranged from 80.8 mg/L to 298.8 mg/L across the four seasons, with an annual mean of （148.1±16.3） mg/L; particulate COD (PCOD) constituted the major fraction, accounting for （52.59±6.26）%. The average TCOD capture efficiency of PFC was (46.86±2.84)%, with the best performance observed for particulate organic matter, indicating that PFC coagulation could effectively recover organic matter from municipal wastewater. The annual mean total acid production, expressed as COD, for the four plants were （2 851.8±339.5）mg/L, （2 720.9±225.4）mg/L, （2 207.1±204.4）mg/L and（2 567.5±310.9） mg/L, respectively. PFC also showed stable capture performance for nutrients, with average removal rates of 69.6% for phosphorus and 17.1% for nitrogen. In summary, particulate fractions dominate the organic carbon in municipal wastewater. PFC coagulation can effectively retain this influent organic carbon while achieving satisfactory acid production, and the resulting fermentation liquor can be used as a supplementary carbon source for biological nitrogen and phosphorus removal.

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更新日期/Last Update: 2026-06-01