The pharmaceutical and chemical industry is one of China's important industries, but it produces a large amount of wastewater during the production process. These wastewater components are complex, containing various organic, inorganic, and biologically refractory substances, and they have high color, causing serious pollution to the environment. Decolorizing agents for pharmaceutical and chemical industrial wastewater can effectively solve the pollution problem in this industry.
Characteristics of pharmaceutical and chemical industrial wastewater:
Complex composition: The wastewater contains various organic, inorganic, and biologically refractory substances, such as antibiotics, hormones, organic solvents, heavy metal ions, etc.
High color: The organic substances and certain chromophoric groups in the wastewater result in high color, ranging in various colors from light yellow to dark black.
High toxicity: Some substances in the wastewater are toxic, such as antibiotics, pesticides, posing a threat to aquatic organisms and human health.
Large fluctuations in water quality: Different production processes and raw materials for different products in the pharmaceutical and chemical industry lead to large fluctuations in the quality and quantity of wastewater.
Hazards of pharmaceutical and chemical industrial wastewater:
Environmental damage: High-color wastewater affects water transparency, inhibiting the photosynthesis of aquatic plants and causing imbalance in the aquatic ecosystem. Furthermore, toxic substances in the wastewater can accumulate in water bodies, poisoning aquatic organisms and affecting their survival and reproduction.
Threat to human health: Harmful substances in pharmaceutical and chemical industrial wastewater may enter the human body through the food chain, posing a potential threat to human health, such as causing allergic reactions, birth defects, and cancer.
Decolorizing agents for pharmaceutical and chemical industrial wastewater use functional groups on their polymer chains to adsorb and bridge colloidal particles and soluble organic substances in the wastewater, forming larger flocs to achieve decolorization.
Considerations when using decolorizing agents for pharmaceutical and chemical industrial wastewater:
Wastewater quality: Factors such as pH, temperature, organic matter concentration, color, etc., will affect the decolorizing effect.
Dosage of decolorizing agent: The dosage directly affects the decolorizing effect. Insufficient dosage will result in incomplete decolorization, while excessive dosage will increase treatment costs. It is recommended to conduct a small trial to determine the specific dosage ratio.
Stirring intensity: Proper stirring intensity can enhance the mixing effect between the decolorizing agent and wastewater, improving the decolorizing efficiency. However, excessive stirring intensity may damage the flocs or affect adsorption.
The decolorization treatment of pharmaceutical and chemical industrial wastewater is a complex issue that requires the selection of suitable decolorizing agents and treatment processes based on the characteristics and treatment requirements of the wastewater. Decolorizing agents for pharmaceutical and chemical industrial wastewater are more efficient, cost-effective, and environmentally friendly, making them an effective method for treating and decolorizing pharmaceutical and chemical industrial wastewater.
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