Immobilization method for anaerobic fermentation bacterial active sludge
A technology of activated sludge and anaerobic fermentation, applied in fermentation, biological sludge treatment, immobilization on or in inorganic carriers, etc. Fermentation and COD removal characteristics, low production cost, simple and easy-to-use preparation method
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[0023] Example 1:
[0024] Centrifuge the activated sludge in a centrifuge for 5 min at a speed of 30000 r / min to obtain concentrated activated sludge.
[0025] Take 25 grams of the above-mentioned concentrated activated sludge, and then add 50 grams of solid carrier mycelium, and the mass ratio of solid carrier to concentrated activated sludge is 2:1;
[0026] After the solid carrier mycelium and the concentrated activated sludge are fully stirred and mixed, the solid carrier adsorbed on the activated sludge is placed in a cross-linking agent with calcium chloride and dried to obtain immobilized particles;
[0027] The obtained immobilized particles are cross-linked for 0.5 h, and then placed in a curing agent ethylene diamine solution for curing for 0.5 h to obtain immobilized activated sludge 1.
[0028] Take 25 grams of starch-based catering organic waste, with a water content of 65%, add 100g of immobilized activated sludge 1, add water to 800ml, add water to 800ml, control t...
Example Embodiment
[0031] Example 2: Take 25 grams of cellulose-based catering organic waste, with a water content of 70%, add 100g of immobilized activated sludge 2, add water to 800ml, control the temperature at 37 degrees Celsius, the fermentation cycle is 30 days, and the fermentation process The average gas production in China and Japan is 360ml, the methane content is about 65%, the TS removal rate is 51.7%, the VS removal rate is 67.3%, and the COD removal rate is 85.6%.
Example Embodiment
[0032] Example 3: Using immobilized activated sludge 3 for anaerobic fermentation. Take 25 grams of catering organic waste mainly made of fats and oils, with a water content of 80%, add 100g of immobilized activated sludge 3, add water to 800ml, control the temperature at 55 degrees Celsius, the fermentation cycle is 40 days, the average daily gas production during the fermentation process is 420ml, methane content is about 61%, TS removal rate is 60.1%, VS removal rate is 66.4%, COD removal rate is 88.7%.
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