ESG Report 2020

The complicated production process of is operated by professional technicians, and the 3 pharmaceutical intermediates and active system can treat nearly 50,000 m of wastewater pharmaceutical ingredients involves different kinds per day. After treatment, the wastewater will then of emissions. As such, Inner Mongolia Company be discharged to the reclaimed water reuse system has implemented sewage treatment system that for further handling. During the third quarter of the integrates biochemical, physicochemical, aerobic, Year, wastewater has been fully reused with no and anaerobic feature to handle different further discharge, completely avoiding the risk of wastewater produced such as acidic wastewater, environmental pollution. cloth washing water, phenylacetic acid wastewater, In addition, Inner Mongolia Company has crystallised mother liquor, circulating cooling established an online monitoring system on water water, and equipment cleaning water. Since 2007, pollutants to strictly monitor chemical oxygen Inner Mongolia Company has built a sewage demand (COD) and ammonia nitrogen (NH-N) treatment station, and has been expanding and concentrations of the wastewater in the renovating it according to the demand during wastewater treatment system, preventing operation, covering a total area of 500 acres. underground water pollution triggered by the Through the treatment process of “ pretreatment+ “ running, emitting, dropping and leakage ” of hydrolytic acidification+Upflow Anaeroic Sludge wastewater during the wastewater treatment Blanket(UASB)+Cyclic Activated Sludge System process. Furthermore, Inner Mongolia continues to ( CAS S ) + c a t a l y t i c o x i d a t i o n + s e c o n d a r y implement wastewater pollutant reduction projects sedimentation tank ” , the sewage treatment station to reduce the pressure on wastewater treatment can effectively treat various water pollutants facilities. generated during the production processes in Inner Mongolia Company. The sewage treatment station Wastewater Treatment In order to mitigate the impact to sewage conductive to the reuse of reclaimed water treatment system brought by the production and the realisation of the treatment and of pharmaceuticals, Inner Mongolia reuse of condensate. Company has invested in and completed Currently, the acidic wastewater MVR two phases of MVR projects to improve the system has a processing capacity of 12,000 efficiency of sewage treatment and 3 m per day, and acidic wastewater safeguard the effectiveness of the generated can be completely treated. The biochemical system. MVR technique is an project also performed evaporation and energy-saving and environmentally-friendly concentration of acidic wastewater to technology that compresses the flash steam reduce the chemical oxygen demand (COD) produced by the system itself to increase of acidic wastewater from 15,000 mg to thermal energy, and circulates heat to the 1,500 mg per litre, reaching a 90% decline, evaporation system to reduce the demand and effectively mitigated water pollution for steam production. Last year, Inner resulted from the production process of Mongolia Company carried out renovation pharmaceuticals. and expansion on the original acidic wastewater MVR processing project, which allowed efficient acidic wastewater pre-treatment, more stable operation, higher degree of automation and effectively reduced the burden on t h e s e wa g e b i o c h e m i c a l treatment equipment. With its capability of reducing the use of 3 fresh water by about 4,200 m per day, the whole project not only lowers the concentration of wa s t e wa t e r , b u t i s a l s o Emission Reduction Project-Acidic Wastewater MVR Project 64 Environmental, Social and Governance Report 2020 The United Laboratories International Holdings Limited