驯化污泥投加量对剩余污泥产酸释磷的影响
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摘要
以南京金陵啤酒厂水处理中心剩余污泥为原料,进行水解酸化回收碳源的研究。伴随挥发性脂肪酸(VFAs)的产生,污泥上清液中会出现大量的磷,最高质量浓度为72.59 mg/L,影响污泥液作为碳源回用。进一步研究驯化污泥投加比在污泥发酵过程中对VFAs和总磷的影响,得到结论:投加比为40%时,污泥产酸性能最好,VFAs质量浓度最高可以达到947 mg/L,产酸过程中总磷质量浓度增加,最高达到49.7 mg/L。
Research on carbon source recycle after a process of hydrolysis acidification is conducted by using the sludge of the Nanjing Jinling Brewery Water Treatment Center as the raw material. With the increase of the volatile fatty acids( VFAs),there will be a lot of phosphorus in the sludge supernatant. The highest content can reach 72. 59 mg / L and it affects carbon source recycling. The further study on the effects of the dosing ratio of fermented sludge on VFAs and total phosphorus shows that acid production performance is the best when the beast dosing ratio is 40%,the highest content of VFAs in sludge supernatant can reach up to 947 mg / L and total phosphorus content in the sludge supernatant increases,up to 49. 7 mg / L.
Research on carbon source recycle after a process of hydrolysis acidification is conducted by using the sludge of the Nanjing Jinling Brewery Water Treatment Center as the raw material. With the increase of the volatile fatty acids( VFAs),there will be a lot of phosphorus in the sludge supernatant. The highest content can reach 72. 59 mg / L and it affects carbon source recycling. The further study on the effects of the dosing ratio of fermented sludge on VFAs and total phosphorus shows that acid production performance is the best when the beast dosing ratio is 40%,the highest content of VFAs in sludge supernatant can reach up to 947 mg / L and total phosphorus content in the sludge supernatant increases,up to 49. 7 mg / L.
引文
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[3]郑林静,陈洪斌,何群彪,等.污水处理厂沼气发电的经济性分析[J].中国给水排水,2007,23(24):6-11.
[4]任爱玲,王启山,郭斌.污泥活性炭的制备、结构表征及吸附特性[J].哈尔滨工业大学学报,2007,39(6):994-996.
[5]苑宏英,陈银广,周琪.污泥生物转化为VFAs及用于生物除磷的研究进展[J].工业水处理,2006,26(2):14-17.
[6]张晓昕,李昂,孙移鹿,等.环境因子对反硝化聚磷菌效能的影响[J].哈尔滨工业大学学报,2013,45(8):39-43.
[7]任南琪,王爱杰.厌氧生物技术原理与应用[M].北京:中国环境科学出版社,2004:317-325.