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Due to their light weight, they will float on the surface of the sewage and are easily collected and treated.
A variety of purification methods
Physical treatment of sanitary wastewater
The first step in designing sanitary wastewater treatment packages is to use physical methods. The main reasons for building a sanitary wastewater treatment package are to prevent the spread of various infectious diseases, and the entry of harmful organic matter into the environment in environments that are not connected to the central wastewater networks.
Chemical treatment of human wastewater
Chemical purification method is used to remove various chemical and industrial pollutants in water. Chemicals prevent bacteria from reproducing in the water and therefore purify the water.
Wastewater treatment package price
Different parameters affect the design, construction and price calculation of these systems. These factors include the quality of wastewater discharge, wastewater treatment processes and necessary equipment, the quality of wastewater produced and treated, the space and place required to construct a wastewater treatment package.
Usually the discharge of wastewater or the volume of wastewater produced is expressed in terms of cubic meters per day. This is important because the discharge of wastewater entering the treatment plant will actually determine the volume and dimensions of the wastewater treatment plant. They usually determine the amount of incoming wastewater with a rough estimate because the exact amount cannot be measured. But to determine its approximate amount, it is possible to examine the factors that produce wastewater such as toilets, baths, sinks and the like, and with a demographic program, calculate the population that produces wastewater and according to the wastewater production coefficient, which is usually between 0.7 Up to 0.9, calculate the relative amount of water that is converted to wastewater.
The next step in determining the price of a treatment package is to choose a wastewater treatment process. There are different types of processes that can be referred to the conventional activated sludge process, or the aerated activated sludge process, or the MBBR wastewater treatment. Extensive aeration system in MBBR system has an advantage that can calculate the shock absorption over the generated load. Usually the discharge of produced wastewater has fluctuations that these fluctuations are not uniform during the day and cause shock to the treatment plant system.
Indicators such as total suspended solids index, pH (PH), chemical oxygen demand (COD), biological oxygen demand (BOD), total phosphorus, total nitrogen are effective in measuring the quality of incoming wastewater. The COD of wastewater entering municipal wastewater treatment plants is usually between 200 and 780 mg / l, the amount of BOD in municipal wastewater is between 110 and 400 mg / l, and the total amount of nitrogen is about 20 to 85 mg / l. PH is another important parameter that is effective in designing a wastewater treatment plant to provide the price of a sanitary wastewater treatment package and usually varies in the range of 6.5 to 7.5. PH is one of the biological processes affecting wastewater treatment microorganisms.
Three categories of standards are defined by the Environment Organization in the quality of wastewater output. Sewage output standard for agricultural use, surface water use standard, and sewage output standard for absorption wells are from this collection.
It is better to pay attention to a few essential points before buying and ordering from companies that manufacture wastewater treatment packages. Necessary standards that must be specified in the design of various packages include the capacity of the blower and dosing chlorine injection pump, the standard of the treated effluent, and the capacity and design principles of the type of wastewater treatment process and the material and thickness of the body of the wastewater treatment package to be specified. In order to preserve existing water resources, poor performance of septic systems and absorption wells, and costly piping system and connection to wastewater collection and treatment networks, the need for treatment packages is felt more than ever.
Ministry of Power
Oil Ministry
Agriculture
Water and Sewerage Company