The Start-up Mode Test of SBR Process for Pickle Wastewater Treatment

Salted wastewater with high salt properties, the salinity range at about 6%, its treatment processing is difficult .This experiment studies the start time and treatment effect of SBR process in different ways (stage cultivation ,full cultivation).The experimental study shows that: with the use of 2-stage salinity increasing method,the start time of SBR process for wastewater treatment being five months,the removal rate of COD,ammonia nitrogen and phosphorus respectively is 85%,87% and 88%.Using the method of low load operation for raw water,the start time being six months,the removal rate of COD,ammonia nitrogen and phosphorus respectively is 73%,72%and73%;So during the start time in SBR process for wastewater treatment ,2-stage increasing method is recommended.