Center for Disease Control and Prevention Sewage Treatment Plant

Center for Disease Control and Prevention Sewage Treatment Plant

Center for Disease Control and Prevention Sewage Treatment PlantIt is a complete set of treatment equipment specifically designed to treat laboratory and medical wastewater from the Centers for Disease Control and Prevention, ensuring compliance with discharge standards. Its core function is to eliminate pathogens, chemical pollutants, and radioactive substances in wastewater, prevent the spread of diseases and environmental pollution. ‌

The sewage treatment equipment of the Center for Disease Control and Prevention mainly adopts activated sludge method and biofilm method, utilizing microorganisms to decompose organic pollutants in wastewater. The activated sludge process converts organic matter into inorganic matter through aerobic microorganisms, while the biofilm process relies on microbial communities attached to the carrier for purification. ‌

Process of sewage treatment equipment at the Center for Disease Control and Prevention:

Pre treatment: Remove large suspended particles and adjust water quality and quantity through equipment such as grilles and regulating tanks. ‌

Physical treatment: using methods such as filtration and precipitation to remove suspended solids and colloidal substances. ‌

Chemical treatment: using chemical agents to react with pollutants to remove heavy metal ions, organic pollutants, etc. ‌

Biological treatment: converting organic pollutants into harmless substances such as carbon dioxide and water through microbial metabolism, including anaerobic tanks, aerobic tanks, and other units. ‌

Disinfection: UV, ozone and other methods are used to kill pathogenic microorganisms and ensure safe effluent. ‌

Configuration of sewage treatment equipment at the Center for Disease Control and Prevention:

The classic configuration of sewage treatment equipment in the Centers for Disease Control and Prevention usually includes core units such as pretreatment, biological treatment, disinfection, and deep treatment. The specific configuration needs to be selected according to the treatment scale and wastewater type. ‌

Preprocessing Unit

Grille: intercepts suspended solids (such as hair, fibers, etc.) in sewage to prevent blockage of subsequent equipment. ‌

Regulating tank: Balance water quality and quantity, automatically start and stop treatment equipment through liquid level control, and adapt to intermittent discharge characteristics. ‌

Biological processing unit

Hypoxia tank: Using fillers (such as elastic fillers) and submersible mixers, nitrogen removal is achieved by decomposing large molecular organic matter through facultative anaerobic bacteria. ‌

Aerobic tank: equipped with aeration devices (such as microporous aerators) and sludge recirculation systems, utilizing aerobic microorganisms to further degrade pollutants. ‌

Disinfection and advanced treatment unit

Disinfection pool: Use chlorine dioxide, ozone, or ultraviolet radiation to kill pathogenic microorganisms. ‌

Multi media filtration: removes fine suspended solids and organic matter through quartz sand, activated carbon, etc., ensuring compliance with emission standards. ‌

Typical Equipment Configuration Example

Small equipment (50-200L/D): including grille, regulating tank, anoxic/aerobic tank, disinfection tank, and multi-media filtration components, mostly made of PP or 316L stainless steel. ‌

Medium sized equipment (above 200L/D): Increase the volume of the anoxic/aerobic tank and equip it with a remote monitoring system, suitable for laboratory wastewater containing pathogen inactivation modules. ‌

Technology of sewage treatment equipment at the Center for Disease Control and Prevention:

Preprocessing technology

Intercept large particles of debris through a grille, regulate the balance of water quality and quantity in the tank, and create stable conditions for subsequent treatment. ‌

Core processing technology

Chemical neutralization: Using acidic neutralizing agents (such as sodium bisulfate) to rapidly reduce the concentration of free chlorine, adjust the pH value to 6-7, and avoid the risk of chlorine volatilization. ‌

Biological treatment: a combination process of anoxic and aerobic tanks, in which organic matter is hydrolyzed by facultative anaerobic bacteria, and pollutants are further decomposed by aerobic microorganisms. ‌

Deep purification: Ultrafiltration membrane (0.1 μ m) intercepts organic matter and colloids, activated carbon adsorbs trace residual chlorine, ensuring total residual chlorine is ≤ 0.1mg/L. ‌

Intelligent Operations

Support real-time monitoring of pH, residual chlorine and other parameters through local touch screens, and connect to the management platform through IoT modules to achieve remote monitoring and abnormal alarm. ‌