ESG Report 2021

Emission Reduction Project- Organic Exhaust Gas Treatment Project In order to fully deal with the harmful hazardous solid waste then undergoes concentrated solution produced by the harmless treatment without producing MVR system, Inner Mongolia Company has additional hazardous waste during the two liquid waste incinerators. The process. At the same time, the flue gas treatment capacity of the liquid waste generated during incineration will be incinerators is 120 tonnes per day, treated with SNCR denitration, flue gas effectively strengthening the ability to treat quenching device, venturi scrubber and wet harmful concentrated solution harmlessly. electrostatic precipitator to reduce the The liquid waste incinerator utilises natural amount of air pollutants generated during gas to incinerate the concentrated solution the incineration process. at a high temperature of 1100℃ , the Emission Reduction Project- Liquid Waste Incinerator Project 77 carry out environmental improvement work and configured exhaust gas treatment facilities in each project. The related production plants have different types of exhaust gas activated carbon adsorption regeneration devices installed, which can recycle the volatile organic solvent adsorbed in the activated carbon, and at the same time reduce the loss caused by volatilization. In addition, Inner Mongolia Company has two secondary alkali spray towers to enhance the efficiency of dust treatment. The current dust treatment efficiency is as high as 95%. Also, the dust generated in the production plants needs to be processed through the low- efficiency non-woven fabric screening process, medium-efficiency chemical fiber non- glue cotton material screening process, and the new alkali spray tower to further prevent pollution to the surrounding atmosphere. The process of “condensate collection+ activated carbon adsorption” adopted in the organic exhaust gas treatment project can recover up to 90% of the volatile organic matter, and the recycled butyl acetate, acetone and ethyl acetate can be applied for production. While treating volatile To prevent volatile organic solvents used in organic exhaust gas, the economic benefits the production process from being emitted to generated from the project are expected to the surrounding atmosphere and affecting air be RMB1 million per year. quality, Inner Mongolia Company continued to Environmental, Social and Governance Report 2021 The United Laboratories International Holdings Limited