| abstract |
The invention discloses a microbial carrier using sludge as a raw material and a preparation method thereof. The raw materials of the microbial carrier include decemented powder, cement, fly ash, zeolite powder, diatomite, and bentonite in a weight ratio of (0.5-3) :(6-10):(2-6):(3-8):(1-3):(2-4); The preparation method of de-cement powder is to get sludge or silt to remove impurities first, and leave to settle; The lower sedimentation sludge is left and dehydrated; then dried at 95-105°C to constant weight, cooled, ground, and sieved to obtain a crude decemented powder; finally, a biological enzyme solution is added to the crude decemented powder, mixed and stirred evenly, and placed in an airtight container After 15-24h of medium stuffiness, the cement powder is obtained. In the present invention, the silt or sludge in the river is treated with biological enzymes and used in combination with materials such as cement, fly ash, zeolite powder, diatomite, bentonite (montmorillonite), etc., so as to significantly improve the microbial proliferation rate of the prepared carrier. Improve the treatment effect of total nitrogen and nitrate nitrogen in sewage. |