关键词: 农村生活污水, 稻壳, 序批式活性污泥法, 吸附

Abstract: Rice husk was used in the investigation of the efficiency of sequencing batch reactor （SBR） with rice husk processing rural domestic sewage waste water，and it’s the adsorption properties of rice husk were studied. The results showed that the removal efficiencies of SBR on organic matter and ammonia nitrogen were good. When the average concentration of influent organic matter and ammonia nitrogen were 530.77mg/L and 35.32mg/L，the removal rates were 90.46% and 95.64%，respectively，and showed a good property of simultaneous nitrification – denitrification. Within a short period of time，rice husk showed release property on organic matter in artificial waste，and adsorption property on ammonia nitrogen. In contrast，rice husk showed release property on organic matter in actual sewage and partial adsorption property，and release property on ammonia nitrogen. The results of immersion test for long time showed that rice husk immersed in deionized water would increase the concentration of organic matter and ammonia nitrogen；the adsorption of rice husk on organic matter was weak；biological action was the main reason of SBR on pollutant removal with rice husk as carrier；and the adsorption effect of rice husk was little.

Key words: rural domestic sewage, rice husk, sequencing batch reactor（SBR）, adsorption