全地下式再生水厂中臭氧催化氧化工艺的设计——以深圳园再生水厂为例
Design of Ozone Catalytic Oxidation Process in Underground Reclaimed Water Plants:A Case Study of Shenzhen Garden Reclaimed Water Plant
王少伦 1罗丁 1王洋 1管清坤 1汪聪 1沙桐 1杨敬畏 1吴凡1
作者信息
- 1. 北京市市政工程设计研究总院有限公司,北京 100082
- 折叠
摘要
深圳园再生水厂出水水质执行《大清河流域水污染物排放标准》(DB13/2795-2018)中重点控制区排放标准(COD≤20 mg/L).该水厂采用多段进水 A2O+深床滤池工艺作为主处理工艺,由于出水化学需氧量(chemical oxygen demand,COD)很难稳定达到排放标准,因而需要增加 COD深度处理工艺.在深入对比臭氧催化氧化、活性炭吸附、超滤-反渗透等多种深度处理工艺后,确认臭氧催化氧化工艺为水厂的 COD深度处理工艺.臭氧催化氧化工艺系统主要包括液氧站、臭氧制备间、臭氧催化氧化池等.详细介绍了臭氧催化氧化系统的系统布置,各处理单体的相对关系,重点分析了三个构筑物的总体布置、设计参数、设计要点等,为今后的同类工程提供借鉴参考.
Abstract
Shenzhen garden reclaimed water plant has implemented discharge standard for key control areas as specified in Discharge Standard of Water Pollutants for Daqing River Basin(DB13/2795-2018)(COD≤20 mg/L).To meet these stringent requirements consistently,the plant decided to incorporate an advanced COD removal process in addition to its existing multi-stage water inlet A2 O process and deep-bed filter process.Several advanced treatment processes for COD removal were evaluated,including ozone catalytic oxidation,activated carbon adsorption,ultrafiltration,and reverse osmosis integrated technology.After a thorough comparison,it is determined that the most suitable advanced COD removal process for this specific plant is ozone catalytic oxidation.The catalytic oxidation process system mainly includes liquid oxygen station,ozone preparation room,ozone catalytic oxidation tank,etc.Furthermore,the system layout of ozone catalytic oxidation and the relative relationship of each treatment monomer are introduced,and the general layout,design parameters and design points of three structures are emphatically analyzed,which can provide reference for similar projects in the future.
关键词
再生水厂/全地下式/深度处理工艺/臭氧催化氧化/工艺设计Key words
reclaimed water plant/underground/advanced treatment process/ozone catalytic oxidation/process design引用本文复制引用
出版年
2024
NETL
NSTL
万方数据