The following article will guide you about how to remove refractory organic and dissolved inorganic substances from sewage. Removal of Refractory Organic Materials from Sewage: In the conventional methods of sewage treatment such as activated sludge process and trickling filters various organic materials (measured by BOD) are removed, but these methods are not effective for […]
How to Remove Materials from Sewage? | Waste Management
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Classification of Granular-Medium Filters | Waste Management
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The granular-medium filters may be classified according to: 1. The Direction of Flow 2. Types of Filter Beds 3. The Driving Force 4. The Method of Flowrate Control. 1. Direction of Flow: Filters used for the filtration of the sewage effluent may be classified according to the direction of flow as downflow, upflow or biflow […]
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On-Site Disposal of Sewage: 4 Methods | Waste Management
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The following points highlight the four methods adopted for on-site disposal of sewage. The methods are: 1. Septic Tanks 2. Leaching Cesspools 3. Imhoff Tanks 4. Clarigester. Method # 1. Septic Tanks: A septic tank is a combined sedimentation and digestion tank where sewage is held for one to two days. During this period, the […]