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Sewage (Wastewater) Projects
Service Content
The process of purifying sewage to achieve the water quality required for discharge to a water body or for reuse. Sewage treatment is generally categorized into production sewage treatment and domestic sewage treatment, by the source of sewage. Production sewage includes industrial sewage, agricultural sewage and medical sewage, and domestic sewage refers to the sewage produced in daily life. Sewage treatment practices are common in various fields such as construction, transportation, energy, petrochemicals, environmental protection, cityscape, healthcare and catering, etc., and are also increasingly visible in our daily life.
Drinking Water Projects
Drinking water includes clean natural springs, water from wells, rivers and lakes, as well as treated mineral water and purified water. Processed drinking water is available in the forms of bottled water, barreled water, pipe direct drinking water, etc. Tap water is generally not used for direct drinking, but is available for direct drinking in some parts of the world where high quality management standards are practiced.
Industrial Water Projects
Water directly used in industrial production is called production water supply. Production water supply includes indirect cooling water, process water, and boiler water. In industrial production processes, to ensure that equipment operates at normal temperatures, cooling water is used to absorb or transfer excess heat from the production equipment (the cooling water is separated from the cooled medium by the walls of a heat exchanger or equipment). Such cooling water is known as indirect cooling water. In industrial production, the water used to manufacture and process products as well as the water related to the manufacturing and processing process are known as process water. Process water includes the water for products, washing water, direct cooling water and other water.
Landfill Leachate Projects
It is a product of the gravitational flow of liquids through the landfill, primarily from precipitation and the water contained in the waste. The properties of leachate vary over a considerable range due to a number of physical, chemical and biological factors that may affect the properties of leachate during liquid flow. In general, the pH of leachate is between 4 and 9, COD is in the range of 2,000–62,000 mg/L, BOD5 is in the range of 60–45,000 mg/L, and the concentration of heavy metals is basically consistent with that in municipal sewage. The leachate from municipal landfill is a type of complicated organic wastewater in high concentration, which can cause serious environmental pollution if it is directly discharged into the environment without treatment. Treatment of leachate is essential to protect the environment.
