微生物菌剂在线污泥减量的生产性应用研究（英文）

发布时间：2018-04-14 15:00

本文选题：污水处理 + 投菌A/O工艺　；参考：《Journal of Southeast University(English Edition)》2016年04期

【摘要】：在A/O污水处理线上开展了为期8个月的投加多功能菌剂Tx-1的生产性应用试验.结果表明:菌剂的投加明显提高了水处理效果,同时减少了污泥产量,降低了能量消耗.在不投加化学除磷剂的情况下,出水总磷含量低于0.5 mg/L;万吨水外排绝干泥量D_(wat)由1.4 t下降到0.5 t;处理每立方米水所需曝气量由6.0 m~3下降到5.1 m~3;处理每立方米水的电耗由0.412~0.425 kW·h下降至0.331 kW·h.投加Tx-1可以提高活性污泥系统的一级基质去除速率常数,降低污泥产率系数.同时投菌体系中的活性污泥菌群结构发生了变化,生物多样性增加;其中2种聚磷菌Comamonadaceae和Tetrasphaera的丰度明显增加.有效的微生物菌剂可为实现在线污泥减量及污染物去除提供解决途径.
[Abstract]:A 8-month productive application experiment of adding multifunctional bacteriostat Tx-1 was carried out on the A- O sewage treatment line.The results showed that the addition of bacteria increased the water treatment efficiency, reduced sludge production and reduced energy consumption.Without adding a chemical phosphorus remover,The total phosphorus content in the effluent was less than 0.5 mg / L; the total phosphorus content in the effluent decreased from 1.4 t to 0.5 t; the aeration rate per cubic meter of water decreased from 6.0 mm3 to 5.1 mm3; and the electricity consumption per cubic meter of water decreased from 0.412 to 0.331 kW / m3. The total phosphorus content of the effluent was less than 0.5 mg / L; the total phosphorus content of the effluent was less than 0.5 mg / L; the total phosphorus content of the effluent decreased from 1.4 t to 0.5 t;The addition of Tx-1 can increase the removal rate constant of primary substrate and reduce the sludge yield coefficient in activated sludge system.At the same time, the structure of activated sludge flora changed and the biodiversity increased, and the abundance of Comamonadaceae and Tetrasphaera of two kinds of phosphorus accumulating bacteria increased obviously.Effective microbial agents can provide a solution for online sludge reduction and pollutant removal.
【作者单位】：南京理工大学环境与生物工程学院;东南大学化学化工学院;
【基金】：The Natural Science Foundation of Jiangsu Province(No.BK20151485)
【分类号】：X703

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