2, began to enter a small amount of production wastewater, the amount of entry does not exceed 20% of the treatment capacity before domestication. At the same time, fresh water, manure and NH4Cl are supplemented.
3. After better treatment, the consumption of production wastewater can be increased by no more than 10 ~ 20% at a time, while the consumption of NH4CL can be reduced. And continue to increase the production wastewater after microbial adaptation and consolidation until NH4Cl stops completely. At the same time, the indexes such as CODcr concentration in effluent were monitored, and the sludge characteristics of mixed liquor were observed. In the period of sludge domestication, the metabolites, namely the supernatant after sludge separation, should be discharged in time.
4, continue to increase the amount of production wastewater, until the full load. In the full-load operation stage, due to the cultivation and maintenance of sufficient activated sludge with high concentration and high activity in the tank, the MLSS of the mixed liquor after aeration in the tank reached 5000mg/ 1. In this process, the dissolved oxygen is monitored synchronously, the operation of the aerator is controlled, and the sludge is examined by biological phase microscope.
5. There are bacteria, green algae and other algae, protozoa and metazoa. Protozoa include solar worms, fiber worms, school worms and metazoans with nematodes. There are a large number of fixed ciliates in the mixed solution at the later stage of debugging, which shows that the effluent quality of the treatment system is good.