Ammonia-contaminated water treatment system of fish farms
Ammonia-contaminated water treatment system of fish farms
The concentration of non-ionic ammonia (NH3) in the water of fish breeding ponds should always be less than 0.5 mg per liter; Because ammonia is a toxic substance for raising fish and other aquatic animals. Other toxic substances for fish and other organisms should also be removed from fish breeding ponds. These materials can include insecticides, pesticides and other chemicals; Therefore, water purification in the fish farming industry is very necessary to remove these toxic materials. The most appropriate method to reduce ammonium and other toxic substances in fish breeding ponds is biofilter. PGA company is capable of making such biofilters in different dimensions.
Biofilter system in oil and petrochemical industry
Wastewater of oil and petrochemical industries have a huge collection of different types of pollutants. Some of the most important pollutants in petrochemical waste are solid and colloid particles, bad-smelling gases that occur due to the decomposition of organic materials and dissolved gases in the waste, carbohydrates, Detergents, dyes, proteins, types of fats, chlorides, heavy metals, nitrogen, phosphorus, carbon dioxide, ammonia, and methane are indicated to cause increased COD and BOD and should be removed by filtering. Removal of various groups of polluting materials in the waste of petrochemical industries can ultimately increase their quality to a desirable level and can use as water for agricultural fields. With these solutions, not only environmental pollution is prevented, but water consumption is also saved to a great extent. In order to treat the waste of oil and petrochemical industries, different physical, chemical and biological steps are needed, including physical removal of particles, degreasing, coagulation and biofilter.
Biofiltration system in livestock industry
Cattle wastewater obtains from washing the milking place of the cattle and the breasts of the cow before and after milking. The collected sewage has an average COD of 4000, milk residues and excrements and it can be considered as one of the polluting industries, so the treatment of cattle waste is one of the priorities of every cattle farm. PGA biofiltration system is capable of purifying this kind of waste to COD less than 100 and can be used in agriculture. PGA biofiltration system in livestock with the capacity of 50 m^3 per day can be installed in 20 foot container and transport to the cattle farm. In the Picture below, there is an installed PGA biofiltration system in cattle farm.
Desalination with reverse osmosis method
Water purification and desalination system with reverse osmosis method
The process of reverse osmosis or water sweetening is a method to separate impurities from water. In this method, the separation factor is mechanical pressure. Currently, the reverse osmosis process plays a very important role in water purification.
Resin water softener system
Resin softener (mechanical softener or ion-exchange softener) is the most common softener in market, which reduces hardness of water by reducing calcium and magnesium; usually are used for industrial, residential and business uses.
Slaughterhouse wastewater treatment system
Sewage of slaughterhouses have very high dose of pollutants and main organic compounds of mostly consist of blood, entrails, fecal and urinal contents, lipids, undigested foods, suspended materials, soluble proteins and particles. Slaughterhouse waste contains significant amounts of primary nutrients including phosphorus, nitrogen, potassium, COD, BOD, microbial pollutants and heavy metals, which are dangerous pollutants in water systems. In traditional methods Concrete ponds is used with or without aeration that this method cannot properly treat and purify such wastes. PGA biofiltration , using a combination system physical, chemical and biological methods based on biofilter is capable of purifying of sewage of slaughterhouse up to the standards of the Environmental Protection Organization and can be used again.
Treatment of Municipal sewage
Treatment of Municipal sewage
According to the urgent need for urban and domestic waste treatment, many methods have been investigated and done, among the most important of these methods are activated sludge, extensive aeration, MBBR, MBR, and SBR.
Wastewater treatment system for leather industries
Biofilter system in leather industry
Leather industries have high water consumption so they release enormous wastewater in environment, and usually have high amount of BOD, COD, TDS, sulfide, ammonium, nitrate and heavy metals such as chrome, industrial salts, organic compounds and skin waste. In case that this waste enters into the environment without treatment, it causes severe damage to the environment. PGA biofiltration, using a combination system physical, chemical and biological methods based on biofilter is capable of purifying of sewage of leather industry up to the standards of the Environmental Protection Organization and can be used again.