摘要
污泥处理处置是我国污水处理的短板,同时也是打赢污染防治攻坚战的重要任务。基于污泥特性与处理处置技术特征,污泥处理处置过程碳排放主要包括能耗药耗造成的能量源碳排放、逸散性温室气体排放,以及能量资源回收和产物利用形成的碳补偿。现有污泥处理处置技术路线碳排放水平为:深度脱水-填埋>干化焚烧>好氧发酵-土地利用>厌氧消化-土地利用。在碳中和的背景下,未来污泥处理处置应以节能降耗及资源能源回收为目标,通过现有技术提升与绿色低碳技术开发,实现过程能耗降低、化学药剂替代、逸散性温室气体控制,以及生物质清洁能源回收等,以提升我国污泥处理处置的碳减排水平。
Sludge treatment and disposal is a shortcoming of sewage treatment in China,and it is also an important task to win the battle against pollution.Based on the characteristics of sludge and the treatment and disposal technical features,the carbon emissions during sludge treatment and disposal mainly include energy source carbon emissions caused by energy consumption and chemical consumption,fugitive greenhouse gas emissions,and carbon compensation formed by energy resource recovery and product utilization.The carbon emission levels of the existing sludge treatment and disposal technical routes are deep dehydration-landfill>dry incineration>aerobic fermentation-land use>anaerobic digestion-land use.In the context of carbon neutrality,the sludge treatment and disposal in the future should aim at energy saving,consumption reduction and resource and energy recovery.Through the improvement of existing technologies and the development of green and low-carbon technologies,the reduction of process energy consumption,chemical agent substitution,and fugitive greenhouse gas control,and biomass clean energy recovery,the carbon emission reduction level of sludge treatment and disposal is improved.
作者
戴晓虎
张辰
章林伟
张荣兵
陈广
胡维杰
DAI Xiaohu;ZHANG Chen;ZHANG Linwei;ZHANG Rongbing;CHEN Guang;HU Weijie(Tongji University,Shanghai 200092,China;Shanghai Municipal Engineering Design Institute(Group)Co.,Ltd.,Shanghai 200092,China;China Urban Water Association,Beijing 100044,China;Beijing Drainage Group Co.,Ltd.,Beijing 100044,China;Shanghai Chengtou Wastewater Treatment Co.,Ltd.,Shanghai 201203,China)
出处
《给水排水》
CSCD
北大核心
2021年第3期1-5,共5页
Water & Wastewater Engineering
关键词
碳中和
污泥
处理处置
节能减排
资源回收
Carbon neutrality
Sludge
Treatment and disposal
Energy saving and consumption reduction
Eesource recovery
