一种新兴污水处理碳捕获技术HiCS的研究

An emerging carbon capture technology HiCS in wastewater treatment

高效接触-稳定工艺(High-rate Contact-Stabilization,HiCS)是一种新兴的高负荷活性污泥碳捕获技术,该工艺碳捕获效率高、污泥增量性能好且曝气能耗相对较低,与厌氧氨氧化等技术进行A-B构型联用处理生活污水有望实现污水处理厂的碳中和运行。介绍了HiCS技术的工艺特点和碳捕获机理,分析其与短程硝化反硝化或部分硝化厌氧氨氧化联用的可行性,就污泥龄、水力停留时间和溶解氧等运行参数对HiCS系统效能的影响进行概述。在此基础上,总结阐述了HiCS工艺现存的研究不足并提出展望,以期能为HiCS的深入探究和工程应用提供参考借鉴。

High-rate contact-stabilization(HiCS)is an emerging kind of high rate activated sludge carbon capture technology.It has higher carbon capture efficiency,better sludge productivity and less aeration consumption.HiCS together with ANAMMOX in A-B process are promising to realize the carbon neutral operation of WWTP.This article introduces the process characteristic and carbon capture mechanism of HiCS,also analyzes the feasibility of it’s combination with shortcut nitrification and denitrification or partial nitrification and anammox.Besides,the effect of sludge retention time,hydraulic retention time and dissolved oxygen on HiCS system’s efficacy is demonstrated.Based on upon discussions,this article concludes the shortage and outlook of HiCS in expectation to provide some reference for it’s further research and engineering application.