The invention relates to an organic
sewage treatment method for a high-concentration culture farm. The organic
sewage treatment method comprises the following steps of sending the
wastewater of the culture farm into a centralized
wastewater tank via a blowdown
pipe to remove
solid matters in the
wastewater; then, sending into a three-level sand
settling and
slag isolation tank to remove fine particles in the wastewater, enabling the wastewater after separation of fine particles into a conditioning tank via high level difference, fermenting by a black membrane overtime anaerobic
fermentation bag, enabling the wastewater to flow into the conditioning tank again via high level difference, enabling a lifting pump to send the wastewater into a biological A / O (anoxic and anaerobic) multiplying oxidizing
tower to physically and chemically treat and denitrify, enabling the wastewater to flow into a secondary
settling tank, and separating
clean water and
sludge of the wastewater in a
solid and liquid separating way in the secondary
settling tank; enabling
activated sludge to flow back into the conditioning tank, and enabling the
clean water to flow into a multifunctional oxidizing pond; enabling the multifunctional oxidizing pond to decompose, consume and absorb organic matters in
clean water via aquatic creatures, and enabling the clean water to flow into a
biological filter tank; and enabling the
biological filter tank to isolate the suspensions. The organic
sewage treatment method has the beneficial effects that the structure is simple, the
processing is convenient, the efficiency is high, the energy-saving effect is realized, and the safety and reliability are realized.