The invention discloses a kitchen
wastewater treatment method which comprises the following steps: 1, chemical
phosphorus removal is performed on kitchen
wastewater flowing out from an IC (internal circulation) reactor; 2, after passing through a
water quality equalization tank, the
wastewater enters a CASS (Cyclic
Activated Sludge System) to react, so that soluble substrates, organisms,
phosphorus and an synchronous
nitrification and
denitrification effect are removed; 3, after the wastewater flows into an intermediate water tank to be subjected to volume regulation, the wastewater enters a
Fenton oxidation reactor and an iron-carbon micro-
electrolysis device so as to improve biodegradability of the wastewater; 4, after passing through the
Fenton oxidation reactor and the iron-carbon micro-
electrolysis device, the wastewater directly enters a
hydrolysis acidification
pool from the intermediate water tank,
suspended matter and iron ions are removed and
sludge is separated, hydrolyzed and acidified; 5, the wastewater is subjected to aerated oxidation to remove COD (
Chemical Oxygen Demand) content; 6, the wastewater enters an MBR (Meane
Biological Reactor)
pool and hardly degradable substances are degraded, so that the drained wastewater reaches the take-over standard of a
sewage treatment
plant; 7, after the
sludge discharged from a chemical
phosphorus removal
pool and the MBR pool is processed by a precision
solid-liquid separator, solids are prepared into an
organic fertilizer and filter-pressing liquid enters the
water quality equalization tank.