盐度对浒苔渗沥液和城市污水联合处理效果影响

盐度是浒苔渗沥液和生活污水联合处理的主要限制因素.试验中采用SBR生物处理工艺对浒苔渗沥液和生活污水进行联合处理,并考察了浒苔渗沥液与生活污水混合比例对处理效果的影响.随着浒苔渗沥液投加比例的增加,盐度含量递增,结果表明：①当盐度低于3.2 g/L时,COD处理效果未受显著影响,当盐度高于3.2 g/L时,COD处理效...

Effects of Salinity on Enteromorpha Leachate and Sewage Joint Treatment

Salinity is the main factor of affecting enteromorpha leachate and sewage joint treatment.The SBR biological treatment has been employed in the joint treatment of enteromorpha leachate and domestic sewage.Meanwhile,we have investigated the effects of the blending rotios of enteromorpha leachate and sewage on the results of the treatments.Along with the increase of the mixing proportions of enteromorpha leachate,salinity has increased progressively.The result indicates： ①when salinity under 3.2 g/L,COD treatment effect is not significantly influenced,Then when salinity over 3.2 g/L,COD removal rate is remarkably influenced;②under high salinity circumstance,ammonia nitrogen treatment effect is not significantly influenced and the removal efficiency maintains above 90%,but,as seen from the effluent nitrate content,salinity has great effect on denitrifying action;③phosphate removal efficiency is greatly affected,from 85% to 5%;④the activated sludge is obviously inhibited,the activated sludge concentration is lowered from the initial 4.1 g/L to last 1.9 g/L and the sludge shape and structure have changed.