Research on pollution prevention and control of tank washing water

During tank washing operation of cargo exchange, repair or dry-docking and other reasons, water containing liquid bulk cargo residues will be produced. Since most of the tank washing water is toxic and harmful, once it discharged to water without receiving and disposing, it will cause serious pollution to coastal waters and river water environment. This paper studied the production, receiving and disposal of tank washing water for liquid bulk carriers. According to relevant environmental laws and regulations, policies and specifications, management mechanism, construction of environmental protection facilities, key technology for disposal, tracking supervision and other main problems. Then we put forward corresponding management countermeasures and suggestions. The results are of great significance for the water pollution prevention and control improvement, the promotion of green development of water transport industry, and coastal and inland water environment protection in China.