ESG Report 2022

8.2.1 Wastewater Treatment T h e c omp l i c a t e d p r o d u c t i o n p r o c e s s o f the wastewater is fully reused to achieve zero pharmaceutical intermediates and active wastewater discharge and completely avoid the pharmaceutical ingredients involves different risk of environmental pollution caused by kinds of emissions. As such, Inner Mongolia wastewater discharge. Company has implemented sewage treatment In addition, Inner Mongolia Company has s y s t e m t h a t i n t e g r a t e s b i o c h e m i c a l , established an online monitoring system on water physicochemical, aerobic, and anaerobic feature pollutants to strictly monitor chemical oxygen to handle different wastewater produced such as demand (COD) and ammonia nitrogen (NH -N) acidic wastewater, cloth washing water, 3 phenylacetic acid wastewater, crystallized concentrations of the wastewater in the mother liquor, circulating cooling water, and wastewater treatment system, preventing equipment cleaning water. Since 2007, Inner underground water pollution triggered by the Mongolia Company has built a sewage treatment “running, emitting, dropping and leakage” of station, and has been expanding and renovating wastewater during the wastewater treatment it according to the demand during operation, process. Furthermore, Inner Mongolia continues covering a total area of 500 acres. Through the to implement wastewater pollutant reduction treatment process of “pretreatment + hydrolytic projects to reduce the pressure on wastewater acidification + Upflow Anaeroic Sludge Blanket treatment facilities. (UASB) + Cyclic Activated Sludge System To enhance the wastewater treatment goals, the (CASS) + catalytic oxidation + secondary group has newly built a three-effect evaporation sedimentation tank”, the sewage treatment system and a multi-functional high-efficient station can effectively treat various water waste mineral oil and mechanical vapour pollutants generated during the production recompression (MVR) system as a backup facility processes in Inner Mongolia Company. The to complement the existing MVR evaporation sewage treatment station is operated by system in the current year. This ensures the professional technicians, and the 3 system can 3 stable operation of the company's sewage treat nearly 50,000 m of wastewater per day. The treatment system, reclaimed water recycling treated wastewater is then discharged to the system, and the production system. reclaimed water reuse system for treatment, and The company invested RMB12 million to build a b e n z o i c a c i d mo t h e r l i q u o r, a n d t h e new set of Three-effect Evaporation System, ultrafiltration and nanofiltration concentrated with a designed processing capacity of 300 tons wastewater generated from D-acid mother per day, it is built on the south side of the MVR liquor recovery process. The purpose of the new system for mother liquor in workshop 507 and system is to reduce the operating load of the on the north side of the concentration section in sewage treatment system and prolong the Workshop 406. The new system is used to treat service life of the reclaimed water membrane the concentrated wastewater generated during system. The project is completed and put into the recovery process of 6-APA mother liquor, operation in February 2022. amoxicillin/amino benzoic acid mother liquor, Three-effect Evaporation System Project Environmental, Social and Governance Report 2022 The United Laboratories International Holdings Limited 73