- Infectious and Parasitic Disease
- Neoplasms
- Endocrine, Nutritional and Metabolic Diseases and Immunity Disorders
- Disease of the Blood and Blood-Forming Organs
- Mental Disorders
- Diseases of Nervous System and Sense Organs
- Diseases of Circulatory System
- Disease of Respiratory System
- Disease of Digestive System
- Diseases of the Genitourinary System
- Complications of Pregnancy, Childbirth and the Puerperium
- Diseases of The Skin and Subcutaneous Tissue
- Diseases of The Muskuloskeletal System and Connective Tissue
- Congenital Anomalies
- Certain Conditions Originating in the Perinatal Control
- Symptoms, Signs, and III-Defined Conditions
- Injury and Poisoning
PROCESS OF WASTEWATER TREATMENT PLANT : Wastewater enters the treatment plant First it goes through a fine screen, next to aerated grit chamber, and then enters the primary clarifier. Sludge settled in the primary clarifier is sent to the fermenters and then to digesters. After the primary treatment, wastewater flows into (BNR) bioreactors. The activated sludge is separated in the following secondary clarifier. The clear effluent flows into Ultraviolet (UV), then to River. Settled activated sludge in the secondary clarifier is pumped back to BNR. Excess sludge is pumped into the dissolved air floatation (DAF) unit for thickening. Wastewater is collected in sanitary sewers (a complex network of underground pipes). Upon reaching the treatment plant, the wastewater flows through a series of treatment processes which remove the wastes from the...
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