Pharmaceutical wastewater pretreatment

1、 CommonPharmaceutical wastewater pretreatmentworkmanship

1. grille：Grille is the first barrier in wastewater pretreatment, used to remove large suspended and floating particles such as fibers, paper scraps, plastics, etc. from wastewater. These substances are prone to clogging subsequent processing equipment, affecting the processing efficiency.

2. equalization tank：Regulating tanks are used to homogenize the water quality and quantity of wastewater, reducing the impact load during the wastewater treatment process. By regulating the pool, it is possible to improve the quality of wastewaterThe parameters such as pH value, temperature, and organic concentration are relatively stable, providing favorable conditions for subsequent processing.

3. Chemical treatment method：For high concentration refractory organic wastewater, chemical treatment can be used for pretreatment. For example, advanced oxidation, ozone catalytic oxidation, iron carbon microelectrolysis, Fenton oxidation and other methods can destroy the structure of organic matter, reduce the toxicity of wastewater, and improve the biodegradability of wastewater.

AnlisphotochemistrytechnologyWe have delved into advanced oxidation applications in various fields, including ultra pure water in the electronics industryTOCDegradation of micro polluted organic matter in tap water, upgrading and deep treatment of sewage treatment plants, pre-treatment of high difficulty organic wastewater, etc. Among them, ozone photocatalytic oxidation technology is more widely used in the pretreatment and deep treatment of sewage treatment plants; And the photocatalytic technology has high reaction efficiencyMild reaction conditions(room temperature and pressure)Widely applicable(CODWide range of applications)It has broad application prospects in the treatment of high difficulty organic wastewater in various industries.

4. physical method：For high ammonia nitrogen wastewater, physical methods such as blow off and stripping can be used to remove ammonia nitrogen from the wastewater. These methods involve altering the wastewaterConditions such as pH and temperature allow ammonia nitrogen to escape from wastewater in the form of ammonia gas.

5. Evaporative crystallization method：For high salt wastewater, evaporation crystallization method is generally used for pretreatment. Through methods such as multi effect evaporation, thermal steam recompression evaporation, mechanical steam recompression evaporation, and falling film mechanical steam recompression cycle evaporation, salt content in wastewater can be removed, reducing the difficulty and cost of subsequent treatment.

2、 Preprocessing effect evaluation

After pretreatment, the wastewater needs to undergo effect evaluation to ensure the effectiveness and stability of the pretreatment process. The evaluation indicators usually include the wastewaterPH value, suspended solids (SS), chemical oxygen demand (COD), biochemical oxygen demand (BOD), and concentration of specific pollutants. By comparing the changes in water quality indicators before and after pretreatment, it is possible to determine whether the effect of the pretreatment process has achieved the expected goals.

3、 Advantages

1. Choose the appropriate pretreatment processAnli Si may need to provide professional design solutions based on the type of wastewater, pollution characteristics, and requirements of subsequent treatment processes to choose the appropriate pretreatment process for you.

2. Ensure stable operation of pre-processing equipmentAnlis has a comprehensive after-sales system that can provide installation, maintenance, and pre-treatment equipment to ensure its normal operation and stable processing effect.

3. Reasonably control preprocessing costsReasonably control the pre-treatment cost and improve the economic efficiency of wastewater treatment while ensuring the pre-treatment effect.

In conclusion,Pharmaceutical wastewater pretreatmentIt is a complex and important process that requires comprehensive consideration of wastewater types, pollution characteristics, and requirements for subsequent treatment processes. Through scientific and reasonable pretreatment processes and strict management measures, it is possible to ensure that wastewater treatment meets environmental protection requirements, protects the ecological environment and human health.