The invention discloses a
wastewater multi-
treatment system for
pollution abatement, and belongs to the technical field of
wastewater and
waste gas treatment, the
wastewater multi-
treatment system for
pollution abatement comprises an absorption water tank for
ammonia gas absorption treatment, the absorption water tank is provided with a
waste gas collecting and conveying gas channel, a heat exchange absorption cover is connected with a conversion absorption disc through a conversion device, and the conversion absorption disc is provided with a plurality of heat exchange channels. Residual
hydrogen and
ammonia gas which are not fully absorbed in the absorption water tank are sucked into the
treatment system again through the concentration opening in the
waste gas collecting and conveying gas channel by means of
airflow suction force, circulation treatment is formed, and the
hydrogen gathering cover on the top of the equipment naturally floats and is enriched by means of the physical characteristic that
hydrogen is low in density. By arranging the valve capable of being controlled to be opened and closed, high-concentration hydrogen is guided into the
combustion device and is mixed with air sucked in through the inclined
oxygen inlet to be safely combusted, the explosion hidden danger caused by hydrogen accumulation in
tail gas is thoroughly eliminated, purification and final treatment of hydrogen are achieved, and the safety of exhausted gas is ensured.