NOVELTY - High load metabolic regulating bioreactor comprises is a suspended growth reactor or dosing suspended biological carrier compound growth reactor comprises double-layer cylindrical separator (4), the high load metabolic regulating bioreactor is divided into reaction zone and settling zone (1), the reaction zone and the settling zone are connected through sludge relux joint (8), the settling zone is located in the upper part of the reaction zone, the double layer cylindrical separator lower end is connected with the sludge suction baffle plate (9).    USE - The high load metabolic regulating bioreactor is useful for acrylic acid or acrylate waste water treatment.    ADVANTAGE - The bioreactor has fast start, high load, stable operation and low processing costs.    DETAILED DESCRIPTION - High load metabolic regulating bioreactor comprises is a suspended growth reactor or dosing suspended biological carrier compound growth reactor comprises double-layer cylindrical separator, the high load metabolic regulating bioreactor is divided into reaction zone and settling zone, the reaction zone and the settling zone are connected through sludge relux joint, the settling zone is located in the upper part of the reaction zone, the double layer cylindrical separator lower end is connected with the sludge suction baffle plate, the double layer cylindrical separator is set with air bubble separate interlayer; circular isolation cylinder is vertical disposed in the reaction zone, the reaction zone is divided into isolation cylinder air flow circulation stirring rapid dilution zone and outer high load metabolism regulating controlling detoxification conversion zone; aeration head, which is set at the bottom of circular isolation cylinder; the top of high load metabolic regulating controlling bioreactor is provided with sealing cover, the bottom is set with water inlet and with vent, the upper portion of high load metabolic regulating bioreactor is provided with water outlet port. An INDEPENDENT CLAIM is also included for use method of high load metabolic regulating bioreactor in waste water treatment, comprising (i) mixing containing high concentration acrylic acid or acrylate waste water and reactor treatment processed water in 1:0-1:10 ratio, adding nitrogen and phosphorus nutrient substances, regulating pH value to neutral using acid or alkali, (ii) pre-processing step (i) water using high load metabolic regulating bioreactor, reducing waste water anaerobic producing methane inhibition rate and propionic acid as substrate to below 10%, removing BOD5 rate at below 20%, (iii) into step (ii) water, supplementing iron, cobalt, nickel element, carrying out anaerobic methanogenic process and (iv) carrying out aerobic biological treatment for effluent.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the high load metabolic regulating bioreactor.    Settling zone (1)    Double-layer cylindrical separator (4)    Sludge relux joint (8)    Sludge suction baffle plate (9)