Water quality – Wastewater treatment standards in different countries
In most developed countries, standards for wastewater treatment are continuously improving. Compared to the 1970s the effluent requirements for the most important pollutant indicators BOD, Nitrates and Phosphorus have steadily increased. For example, in the United states the clean water act from 1972 demands that all Municipal sewage treatment plants (POTW) are required to meet […]
How do tube settler work – plate settler, lamella clarifier tutorial
Tube settlers which are also known as plate settlers or lamella clarifiers are used to increase settling performance within a sedimentation basin. Tube settlers consist of inclined plates or channels that provide a settling surface area for particles in wastewater and drinking water. The total settling area is the sum of the projected area in […]