ESG Report 2019

Based on the special properties of the reduce the demand for steam production. pharmaceuticals produced, the acidic Inner Mongolia Company invested in the MVR wastewater generated during the production evaporation concentration project to deal with process in Inner Mongolia Company has the the crystallization mother liquor and high- characteristic of high chemical oxygen concentration wastewater like acidic demand (COD) and high sulfate content. The wastewater generated during the production acidic wastewater is likely to have an impact process, to reduce the concentration of on the biochemical system in the sewage wastewater entering the wastewater treatment system, reducing the processing treatment system and to improve the efficiency of the biochemical system. efficiency of sewage treatment and safeguard the effectiveness of the biochemical system. MVR technique is an energy-saving and During the Year, Inner Mongolia Company environmentally-friendly technology that carried out renovation and expansion on the compresses the flash steam produced by the o r i g i n a l h i g h l y - c o n c e n t r a t e d a c i d i c system itself to increase thermal energy, and wastewater MVR deep processing project. circulates heat to the evaporation system to BACKGROUND Inner Mongolia Company has completed two is insufficient to fully process the acidic phases of MVR projects, which applied wastewater. During the Year, Inner Mongolia effective acidic wastewater pre-treatment Company renovated and expanded the acidic technology, with comprehensive system wastewater MVR system. After the renovation designs, stable operation and high degree of and expansion, the capacity of treating acidic automation. Inner Mongolia Company wastewater reached 12,000 cubic meters per produces a total of 10,000 cubic meters of day, and acidic wastewater generated in the acidic wastewater per day. The original acidic production process can be completely wastewater MVR system has a processing treated. capacity of 7,500 cubic meters per day, which PROJECT STATUS OBJECTIVES AND EFFECTIVENESS The renovation and expansion project is conducive to the reuse of reclaimed water performed evaporation and concentration of and stable up-to-standard discharge. The acidic wastewater to reduce the chemical project reduces the malodorous exhaust gas oxygen demand (COD) of acidic wastewater generated by wastewater, and realizes the from 15,000 mg to 1,500 mg per litre, the treatment and reuse of condensate, which decline reached 90%. The burden on the can reduce the use of fresh water by about subsequent sewage biochemical treatment 4,200 cubic meters per day. equipment can be effectively reduced, which ENERGY SAVING AND ANTI POLLUTION ACIDIC WASTEWATER MVR RECONSTRU – CTION AND EXPANSION PROJECT – – – 56 Environmental, Social and Governance Report 2019 The United Laboratories International Holdings Limited