In the design of an object of industrial or public utility, an object carried water management for agricultural purposes calculation.As a result, it becomes known amounts of water consumption and water required for normal household or production operation of the proposed facility.
calculation of water management in the literature and regulatory documents specified name - the balance of water consumption and wastewater.Water consumption includes the total volume of water - drinking and technical water supply of the cost of the object.Wastewater - the volume of water from the plant (residential house) in the form of domestic or industrial waste water entering the sewage system or a centralized filtration fields on terrain or in designated water body.
balance of water consumption and wastewater characterizes the ratio of water supplied to the object with the volume of liquid waste discharged from the facility after the use of water for household or industrial purposes.According to the principle of equilibrium (balance) values of water consumption and wastewater must be equal or differ by the amount of irrevocable water consumption, which is typical in enterprises that use water in the production of products (for example, production of bottled water).Also, the amount of wastewater may differ from the amount of water consumption by the volume of water evaporation or filtering it into aquifers (eg, discharge of effluent from a gold processing plant in the pond a large area).
The balance of water consumption and wastewater include the amount of precipitation entering the territory of the enterprise (the melting of snow, rain) and a storm water entering the storm sewers.
One of the documents for obtaining a license (permit) for the use of the water surface or object to process licenses for the extraction of underground water is the balance of water consumption and wastewater.The same calculation is required for the design of communications for the uninterrupted supply of water.Based on the volume of water consumption project lays the geometric parameters of the pipelines, power pumps for water supply.Calculation of drainage needed for trouble-free removal of sewage from the service area, followed by purification of sewage polluted water in sewage treatment plants.These volumes of water use and sanitation are taken as a basis for the settlement payment in the contract for the supply of water or to receive waste in the sewage system.
Examples of design calculations of water consumption and wastewater are given in reference and technical literature, water standards specified in the building regulations.In recent years, companies suppliers of drinking water demand from consumers equipment water and sewage networks water meters, which contributes to obtaining accurate information on the actual volumes of water.
When calculating water use can be determined and the cost of electricity required for water extraction.Thus it is necessary to take into account the loss of electrical energy to overcome obstacles in the pipeline as pumps working with a certain efficiency (coefficient of performance).
water balance calculation can make any competent engineer.For such calculations are happy to accept the specialized agencies, but this service does not come cheap.
