Method for enrichment culture of nitrifying bacteria by using anaerobic digestion supernatant

The invention discloses a method for enrichment culture of nitrifying bacteria by using anaerobic digestion supernatant, which comprises the following steps of: mixing seed sludge and supernatant subjected to sludge anaerobic digestion according to a volume ratio of 1:7, and adding sodium bicarbonate to make the concentration of sodium bicarbonate in culture solution 0.5g/L; culturing and measuring the concentration of ammonia nitrogen every day; ending enrichment culture of the first generation of nitrifying bacteria when the concentration of ammonia nitrogen in the culture solution is lower than 70mg/L; centrifuging residual culture solution subjected to the first-generation culture for 20 minutes at a rotating speed of 8,000 revolutions per minute by using a high speed centrifuge, and discarding the supernatant, using the residual sludge as the seed sludge for enrichment culture of the second generation of nitrifying bacteria; and performing the enrichment culture of five generations ...

Method for producing edible mycelium

A kind of method for producing edible fungi uses purified vegetable albumen as culture medium. Compared with conventional productive method, the investment is only 1/5, productive period is only 1/10 and the success rate is 100%, the nutritive and health-care value are even high and the taste is much better.

Tradititional Chinese medicine preparation for curing tuberculous diseases

The Chinese medicine preparation for treating tuberculosis is developed based on the pathogenetic mechanism of tuberculosis and according to the treating principles including diminishing inflammation, killing bacteria, excreting toxin and nourishing body. The Chinese medicine is prepared with realgar, cantharides, rhubarb, sesame and kaoliang and through one modern technological process. It has obvious curative effect effect, less toxic side effect and no drug resistance.

HCV composite multi-epitope transgene plant oral vaccine

Method for producing edible fungus fragrant fermenting seasoning

A new method for producing the flavouring uses stalk, peel and shell of plant as main material to culture mycelia of edible fungus, which are then made to mould and ferment to prepare the flavouring. This product is refreshing and fragrant, high in nutrition and low in production cost.

Enrichment culturing method for ammonia oxidizing bacteria

The invention discloses an enrichment culturing method for ammonia oxidizing bacteria. The method comprises the following steps: adding activated sludge containing nitrobacteria into a culture medium which takes landfill leachate as a raw material; controlling the concentration of DO (dissolved oxygen) to be between 2 and 3mg/L; keeping constant shading aeration in a culturing process; and taking5 days as a culture cycle for one generation, and culturing 4 generations in total. Experimental comparisons prove that the ammonia oxidizing efficiency of the ammonia oxidizing bacteria, cultured inthe landfill leachate, is increased by 20.9 percent compared with that of the ammonia oxidizing bacteria not cultured in the landfill leachate. The economical and efficient nitrobacterium with high concentration can be prepared by the method, and the prepared high-concentration nitrobacterium is added into a waste water biological denitrification process so as to improve the denitrification efficiency ...