水解池-稳定塘工艺对难降解有机污染物的去除

色谱－质谱联机测定结果表明，水解池能将大分子难降解有机物转化为小分子物质，从而加速了污水在后续稳定塘中的降解。这使得新工艺比对照的传统初沉池－稳定塘工艺减少停留５０％，占地面积５０％以上。本文还研究了三氯甲烷，二氯乙烯，二氯乙烷和四氯乙烷和四氯化碳在新工艺中的去除情况，实验表明，水解池中存在还原脱卤过程，而挥发是稳定塘去除卤代烃的主要途径。

Removal of Recalcitrant Organic Compounds in Hydrolysis Tank-Stabilization Pond System

Recalcitrant organic compounds are a limiting factor that reduces efficiency of wastewater treatment process. In order to remove the refractory organics effectively, shorten retention time of stabilization pond and decrease land occupied, technological system, a hydrolysis tank - stabilization pond (HTSP) system is proposed. The result of GC/MS test shows that large molecular organics were transformed into low organic molecules in the hydrolysis tank. Therefor,the degradation of wastewater in stabilization pond was accelerated. Land occupied of the HTSP system was 50% less than that of a primary settling tank - stabilization pond (STSP) system. The studies were also conducted on the removal of CHCl3,C2H2Cl2,C2H4Cl2 and CCl4 in the HTSP system. The experiments indicates that the processes of reduction dehalogenation occurred in the hydrolysis tank and volatilization was the main way to remove halohydrocarbon in stabilization pond.