Process

Easy and Simple Environmental Low-Temperature MVR Evaporation System

**Pharmaceutical Factory Co., Ltd. (Shanghai Pharmaceutical Group), Low-Temperature MVR Treatment Project for Production Wastewater.** The pharmaceutical factory is a comprehensive pharmaceutical enterprise that focuses equally on chemical raw materials and pharmaceutical preparations, with a full development in science, industry, and trade. This system is designed to support the hydrochlorothiazide raw material workshop, aiming to remove aniline compounds from the raw water. The designed treatment capacity is 10 t/d, with a pH of 4-8 and a solid content of 7.6%, which includes approximately 3.2% sodium chloride, 3.8% ammonium chloride, and about 0.6% other organic substances, with a COD of approximately 3000 mg/L, where organic substances do not volatilize during evaporation. The design employs low-temperature MVR evaporation (60-65°C) to concentrate the solution by 5 times, resulting in the cold crystallization of organic substances. The high-salinity and high-ammonia mother liquor undergoes alkaline deammonification to produce ammonia water, with a designed deammonification rate of 90%. The low-ammonia brine after deammonification is added to the biochemical system for compliant discharge. The evaporated condensate is reused in production. This meets production needs, and customer satisfaction is very high.

Key words: Multi-effect evaporation | distillation | resin adsorption

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Product Description

**Pharmaceutical Factory Co., Ltd. (Shanghai Pharmaceutical Group), low-temperature MVR treatment project for wastewater.
**The pharmaceutical factory is a comprehensive pharmaceutical enterprise that focuses equally on chemical raw materials, chemical drug formulations, and the comprehensive development of science, industry, and trade. This system is designed for the hydrochlorothiazide raw material workshop, aiming to remove aniline compounds from the raw water. The designed treatment capacity is 10 t/d, pH: 4-8, solid content is 7.6%, including about 3.2% sodium chloride, about 3.8% ammonium chloride, and about 0.6% other organic substances, with COD around 3000 mg/L, and organic substances do not volatilize during evaporation. The design employs low-temperature MVR evaporation (60-65°C) to concentrate 5 times, with the discharge resulting in cold crystallization of organic substances. The high-salinity, high-ammonia mother liquor undergoes alkaline deamination to produce ammonia water, with a designed deamination rate of 90%. The low-ammonia brine after deamination is dripped into the biochemical system for compliant discharge. The evaporated condensate is reused in production. It meets production needs, and customer satisfaction is very high.

Related process

Multi-effect evaporation technology

MVR Evaporation Technology

Distillation technology

Resin adsorption technology

Evaporation mother liquor drying technology

Ammonia Desorption and Absorption Technology

Efficient Catalytic Oxidation Technology

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