From 2017 onwards, Shanghai officially implemented the “Emission Standard for Air Pollutants in Shipbuilding Industry” (DB31/934-2015). The existing pre-treatment lines of the shipyard and the environmental protection facilities supported by the painting workshop cannot meet the stricter new emission standards. Faced with the serious problem of excessive discharge of VOCs and payment of huge sewage charges. VOCs are called volatile organic compounds and are important precursors for the formation of ozone and PM2.5 pollution. The annual VOCs emissions from large-scale shipbuilding operations and steel plate pretreatment processes are generally above 100 tons. The VOCs management of shipbuilding enterprises is plagued by large plant area, unbalanced load and high operating cost. Finding stable, efficient, economical and safe VOCs treatment technology suitable for shipbuilding enterprises is an urgent problem for shipyards.

Shanghai Keying Environmental Protection Equipment Co., Ltd. adopts activated carbon adsorption equipment for the treatment of organic waste gas from the shipyard. The organic exhaust gas is powered by the fan, and the positive or negative pressure enters the activated carbon adsorber tower. Due to the unbalanced and unbalanced surface of the activated carbon solid. Saturated molecular gravity or chemical strength, so when the solid surface is in contact with the gas, it can attract the gas molecules, concentrate it and keep it on the solid surface, and the pollutants are adsorbed. After the exhaust gas passes through the filter, it enters the equipment to discharge dust. The system, the purification gas is discharged at high altitude.

The activated carbon adsorption device is a dry exhaust gas treatment device, which is composed of a box body and an adsorption unit filled in the tank body, and has the advantages of low cost, low operation cost, convenient installation, stable performance, high processing efficiency, convenient maintenance/maintenance, and operation. Simple management, no special technical requirements, strong adaptability, applicable to various air volumes and various industries, no need for dust-containing gas. Main application areas: chemical, rubber, painting, printing, electronics, medicine, painting, food and brewing, furniture production, etc.