Sludge acclimation method for adapting bacteria in activated sludge to high salinity environment

Abstract

The invention discloses a sludge acclimation method for acclimatizing bacteria in active sludge to high salty environment. The method includes that (1) the salinity of the industrial waste water is measured; (2) an array with a last term of 1 is selected according to the estimated acclimation period and the salinity of the objective sewage, and the salinity of each prepared water can be obtained by the salinity of the waste water multiplying each item of the array with the last term of 1; (3) the mixed sewage is prepared according to the calculated salinity of the prepared water for the acclimation of the active sludge. The method of the invention has the advantages of simple and easy technique and strong operability, improves the success rate of the sludge acclimation and the treatment effect of the sludge, shortens the sludge acclimation period, fastens the acclimation speed of the active sludge in the reactor and saves the cost.

Description

Sludge domestication method for adapting bacteria in activated sludge to high salinity environment technical field The invention relates to an activated sludge domestication method for adapting bacteria in the activated sludge to a high-salinity environment, in particular to an activated sludge domestication method for treating high-salinity refractory industrial wastewater. Background technique Activated sludge process is often used to treat industrial wastewater containing refractory organic matter. This is because the refractory organic matter in this type of wastewater is difficult to treat by physical or chemical methods, but these substances can be decomposed, transformed or absorbed by microorganisms. When the activated sludge method is used to treat high-salinity refractory industrial wastewater, a sludge domestication process is required to adapt the bacteria in the activated sludge to the high-salinity environment in the sewage. The domestication of sludge is a ...

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Problems solved by technology

In the traditional domestication method, in the actual water distribution process, the proportion of sewage added is directly proportional to the time of domestication, and the proportional coefficient is determined by the user based on experience. If it exceeds the tolerance of microorganisms in the sludge, domestication will easily fail.

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