Ⅲ．废水好氧生物处理及凝聚处理的研究

Ⅲ.AEROBIC BIOLOGICAL AND COAGULATION TREATMENTS OF HIGH YIELD PULPING EFFLUENT

研究了云杉、杨木制高得率浆──ＢＣＭＰ及ＢＣＴＭＰ综合废水用间隙方法（曝气塘法）、连续方法（活性污泥法）净化处理的效果。结果表明：（１）这类废水直于用好氧生物方法处理；（２）间隙法曝气３２ｈ，ＣＯＤ负荷在１～２ｋｇＣＯＤ／ｍ￣３·ｄ条件下，杨木ＢＣＭＰ废水ＣＯＤ＿（ｃｒ）去除６４．７％，杉木ＢＣＭＰ废水去除５３．０％；连续法ＣＯＤ去除６７％～８０％（云杉）和７３％～８７％（杨），ＢＯＤ＿７去除率云杉、杨均在９７％～９９％范围；（３）系统操作稳定，易于调节控制。文中还探讨了凝聚－絮凝处理对高得率浆废水净化处理的效果；通过研究，分别推荐出适合南方和北方高得率浆厂废水处理工艺流程。

Two processes(Aeration lagoon and Activated sludge)were used to treat effluent from BCMPand BCTMP waste water of fir,spruce and poplar and their purification efficiencv were tested.The resultsshow that:a)aerobic biological process is favour to this type of waste water;b)for waste water with CODlevel of 1～2 kg COD/m￣3·d under the batch process(after 32 h aeration),64.7% COD_(cr) was removed frompoplar BCMP effluent and 53.0% COD_(cr) removed from fir BCMP effluent; under continuous process,67%～80%COD_(cr) removed from spruce effluent and 73%～87%COD_(cr) removed from poplar effluent,97%～99%BOD_7 removed from both spruce and poplar effluent;c)whole system was stable and easy for regula-tion.