The invention discloses a composite biological
carbon source and a preparation method thereof. The composite biological
carbon source is prepared from the following raw materials:
carbon source liquid,
alcohol organic matters, trace elements, small molecular
organic acid, saccharides,
glycerol, vitamins, a surfactant and a
buffering agent, the
nutrient solution comprises the following components in parts by weight: 10-30 parts of carbon source liquid, 5-10 parts of
alcohol organic matters, 0.5-1 part of trace elements, 1-5 parts of small molecular organic acids, 10-20 parts of saccharides, 5-10 parts of
glycerol, 0.5-1 part of vitamins, 0.5-1 part of a surfactant and 0.5-1 part of a
buffering agent. The composite biological carbon source is prepared from the carbon source liquid, the
alcohol organic matter, the trace elements, the small molecular
organic acid, the saccharides, the
glycerol, the vitamins, the surfactant and the buffer agent, the components in the composite biological carbon source can be better utilized by microorganisms, the utilization efficiency of the carbon source is improved, and the composite biological carbon source contains various nutritional ingredients, so that the composite biological carbon source has a good application prospect. Various nutritional requirements required by growth of microorganisms can be met, rapid propagation and
metabolic activity of the microorganisms are promoted, and the requirements of
sewage treatment can be more effectively met.