Standard Process of Centralized Wastewater Treatment Facility
Date public: 11-05-2024||View: 844
Wastewater is a pressing issue that the government is focusing on due to its direct impact on human health and ecosystems. Centralized wastewater treatment is an effective solution to protect the environment and water resources. The treatment process at a centralized wastewater treatment plant involves several steps to ensure the safety and quality of the treated water before it is released back into the environment.
1. Purpose and Importance of the Centralized Wastewater Treatment Process
The main objective of the centralized wastewater treatment process is to remove pollutants, impurities, and harmful microorganisms before discharging the treated water into the environment. The treated wastewater must meet the standards set by the government. Additionally, any violations discovered will result in penalties according to specific regulations.
This process is essential for densely populated areas and industrial zones.
The centralized wastewater treatment process plays a crucial role in protecting the environment and human health. Proper implementation of standards brings numerous benefits, such as:
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Reducing environmental pollution: Ensuring that the treated water meets quality standards and is safe for the environment.
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Protecting human health: Removing harmful microorganisms from the wastewater to protect public health.
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Saving water resources: Treated wastewater can be reused for various purposes, helping to conserve water resources.
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Reducing treatment costs: Centralized wastewater treatment is more cost-effective compared to individual treatment.
2. Steps in the Standard Process of Centralized Wastewater Treatment
The treatment at a centralized wastewater treatment plant is vital to ensure a safe and unpolluted living environment. The standard process includes the following steps:
Step 1: Mechanical Treatment
Mechanical treatment is the first and crucial step in the centralized wastewater treatment process. Here, wastewater is treated to remove solid waste, debris, sand, sludge, grease, and other impurities. This process typically involves methods such as screening, sedimentation, and the use of equipment like grit chambers and sludge stabilization. By removing these impurities, the wastewater is cleaner and ready for the subsequent treatment stages.
Step 2: Physical Treatment
Physical treatment involves removing smaller solid particles, heavy metals, and other impurities through methods like coagulation and oil separation. This step improves the quality of the wastewater by eliminating toxic substances and preparing it for chemical and biological treatments.
Step 3: Chemical Treatment
Chemical treatment is a critical part of the wastewater treatment process, where chemicals are used to neutralize, oxidize, and remove metal ions, as well as reduce chemical oxygen demand (COD) and biological oxygen demand (BOD). The chemical process involves compounds like fluoride and coagulants, which create chemical reactions that ensure the wastewater is safer after treatment.
Step 4: Biological Treatment
Biological treatment uses microorganisms to break down organic substances in the wastewater. Through aerobic, anoxic, and anaerobic tanks, microorganisms are provided with the necessary living conditions to decompose organic matter. This process helps reduce COD and BOD, resulting in cleaner wastewater.
Step 5: Sludge Treatment
Sludge treatment is the final step in removing any remaining solid materials after the previous processes. It includes dewatering, stabilizing the pH/temperature of the sludge, and reusing activated sludge. This process minimizes the amount of waste discharged into the environment and allows for the reuse of sludge in other treatment processes.
Step 6: Disinfection
The disinfection step involves filtration methods to ensure that the treated wastewater meets safety standards before being discharged into the environment. This process ensures that no bacteria, harmful microorganisms, or toxic substances remain in the wastewater before it is released.
This is the complete standard centralized wastewater treatment process, which helps remove pollutants and ensures human health safety. The construction and operation of centralized wastewater treatment plants are crucial to maintaining a sustainable living environment.
Dai Nam Environmental Company is proud to be a leading company in the field of wastewater treatment in Vietnam. With over ten years of experience, the company has successfully provided effective solutions for wastewater treatment at numerous centralized wastewater treatment plants nationwide. Contact us at 0909 378 796 for the best consultation and support on wastewater treatment issues.*
