一种用于食物垃圾消化的混合厌氧固液系统。

A hybrid anaerobic solid-liquid system for food waste digestion.

作者信息

Wang J Y, Zhang H, Stabnikova O, Ang S S, Tay J H

机构信息

School of Civil and Environmental Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore.

出版信息

Water Sci Technol. 2005;52(1-2):223-8.

PMID:16180432

Abstract

A hybrid anaerobic solid - liquid (HASL) system was developed to enhance food waste bioconversion in comparison with the conventional two-phase anaerobic digester. The advantages of the HASL system were the higher efficiency of methane production and smaller volume of effluent from the system. The biogas, which was generated from the methanogenic phase, had an average methane content of 71-72%. Total removal of volatile solids consisted of 78-80%. The HASL system can be operated in both batch and semi-continuous modes with satisfactory performance. The addition of a submerged biofilter for ammonia removal to the HASL system further enhanced the performance of anaerobic digestion. Methane production in the enhanced HASL system was increased by 26% in comparison with the HASL system without submerged filter. This paper describes the development of the enhanced HASL system for anaerobic treatment of food waste.

摘要

为了与传统的两相厌氧消化器相比提高食物垃圾的生物转化效率，开发了一种混合厌氧固液（HASL）系统。HASL系统的优点是甲烷产生效率更高，且系统产生的废水体积更小。产甲烷阶段产生的沼气，其平均甲烷含量为71%-72%。挥发性固体的总去除率为78%-80%。HASL系统可以在间歇和半连续模式下运行，性能令人满意。在HASL系统中添加用于去除氨的淹没式生物滤池进一步提高了厌氧消化性能。与没有淹没式滤池的HASL系统相比，强化HASL系统中的甲烷产量提高了26%。本文描述了用于食物垃圾厌氧处理的强化HASL系统的开发情况。