Biologycal Oxygen Demand (BOD) What is BOD? Biological oxygen demand (BOD), also called biochemical oxygen demand, The BOD5 value indicates the amount of oxygen that bacteria and other tiny living beings consume for 5 days at a temperature of 20 ° C in a water sample for the aerobic degradation of the substances contained in … Read more
A coating is a covering that is applied to the surface of an object, usually referred to as the substrate. The purpose of applying the coating may be decorative, functional, or both. Coatings may be applied as liquids, gases or solids e.g. Powder coatings. Paints and lacquers are coatings that mostly have dual uses of … Read more
Primary treatment Primary treatment removes material that will either float or readily settle out by gravity. It includes the physical processes of screening, comminution, grit removal, and sedimentation. Screens are made of long, closely spaced, narrow metal bars. They block floating debris such as wood, rags, and other bulky objects that could clog pipes or … Read more
A sewerage system, or wastewater collection system, is a network of pipes, pumping stations, and appurtenances that convey sewage from its points of origin to a point of treatment and disposal. Combined systems Systems that carry a mixture of both domestic sewage and storm sewage are called combined sewers. Combined sewers typically consist of large-diameter … Read more
Types of sewage There are three types of wastewater, or sewage: domestic sewage, industrial sewage, and storm sewage. Domestic sewage carries used water from houses and apartments; it is also called sanitary sewage. Industrial sewage is used water from manufacturing or chemical processes. Storm sewage, or storm water, is runoff from precipitation that is collected … Read more
RBC or Rotating Biological Contactor is a liquid waste treatment process using a method in which this wastewater treatment unit rotates with a center on an axis or axle which is driven by a motor drive system and/or air blowing (air drive system) from a diffuser immersed in wastewater. , under media. Made of plastic, … Read more
Water is a very important need for life. Not only for hygiene needs, water is also consumed by the body to meet the mineral needs needed by the body. Based on the general aspect, good drinking water is colorless, odorless and tasteless. However, there are important parameters that must be measured to determine the quality … Read more
The quality of drinking water is very important to pay attention to, especially in the processing process. One of the parameters that determine the quality of drinking water treatment is Total Suspended Solid (TSS) or total suspended solids. This is because raw material water for drinking water treatment can come from various sources, namely springs, … Read more
Industrial waste is the waste produced by industrial activity which includes any material that is rendered useless during a manufacturing process such as that of factories, mills, and mining operations. Types of industrial waste include dirt and gravel, masonry and concrete, scrap metal, oil, solvents, chemicals, scrap lumber, even vegetable matter from restaurants. Industrial waste … Read more
Within the global management of generated waste, it is important to classify them. There are different classifications, depending on their origin, composition, dangerousness, etc. Classification on waste and contaminated soils is the most interesting for the purpose of better subsequent management of the same: “Domestic waste”: waste generated in homes as a result of domestic … Read more