Biofiltration system for Metal Plating
Based on the type of plating used in this field, the wastewater will have various types of heavy metal such as chromium, nickel, tin, copper, aluminum, cadmium and cyanide. Pouyagen Azma company has succeeded to make biofiltration system for treatment of this type of wastewater and had been successfully installed and is using so far in more than 20 metal plating industries. Process of PGA bioftration system contains pH adjusting, isolation of particles with bag filter and removal of heavy metals by biofiltration system. All of this process is continuous and automatic using PLC or electrical panel. One of the installed plating biofilteration is shown in picture below.
Food industry wastewater treatment system
Various food industries including production factories such as dairy products, canned food, compote, tomato paste, juice, soft drinks, dry beans and ready-to-eat vegetable, despite the wide variety of products, have similar quality in waste production. The amount of COD and BOD of this industries are in 100-10000 milligram per liter.
leachate treatment system
Garbage leachate is a fluid obtained from buried or recycled garbage which has various dangerous and toxic substances and in according to geographic region, has different range from 10000 to 120000 in BOD, COD and TDS and in case entering to environment has irreversible effects and must be treated. Here in PGA company, we have succeeded in setting up a waste water treatment system based on biofilter. One of this system successfully installed in garbage collection stations of Tehran. That has capacity up to 20 cubic meters per day and can install a 20 foot mobile-container, picture of this system is given bellow.
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.
Textile wastewater treatment system
Textile and dyeing industries are one the largest consumers in the world, so they produce huge amount of wastewater and this wastewater have wide range of pollutants such as pigments and auxillary materials like dispersants, homogenizers, carriers, salts, acids, alkalis, and sometimes heavy metals. Similar to most industrial waste treatment packages, there are two main steps in textile and dyeing waste treatment. chemical and physical treatment and then biological treatment (biofilter). In the physical and chemical phase of purification the first step is adjusting the pH in neutral range, and then due to the high turbidity the chemical coagulation method is used to remove the pigments and suspended particles. In the last step an aerobic biofilter stage is used to remove the remaining materials. The image of a textile wastewater treatment system with a capacity of 100 cubic meters per day is shown below.
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.