RU2381333C2 - Method of reduction of fresh water consumption in populated locality - Google Patents

Abstract

FIELD: construction industry.

SUBSTANCE: invention refers to the field of water supply and sewerage. Method of reduction of fresh water consumption in populated locality includes separate water disposal from apartments. At that two sewage effluents are formed by means of separate performance of arrangement of sewage pipes in apartment, of uprise and sewage system. Black water and waste water from kitchen are drained to one of sewage effluent, and other liquid wastes are drained to second sewage effluent. Water from second sewage is provided for decontamination and sterilisation. It is treated to level of industrial water and is recycled being used in municipal facilities.

EFFECT: increase of effectiveness of fresh water use.

Description

FIELD OF THE INVENTION

The invention relates to water supply and sanitation, and aims to reduce water consumption in the village.

State of the art

There is a separate method for the disposal of domestic sewage from residential apartments, for example, when one of the drains does not contain fecal waste, see the article “Engineering networks of your home. Sewerage ", according to the magazine" Ideas of Your Home "No. 7, 1998

Disclosure of invention

There is a known problem of fresh water in the world, which more and more humanity lacks. The invention is directed to the implementation of more economical consumption of fresh water.

Almost all fresh water used by the residents of the apartment for domestic purposes is turned into waste and discharged into the sewer. There is no need to explain the obvious difference in the chemical and bacteriological compositions of the fecal water discharged from the toilet into the sewer and the drains from the kitchen containing food debris and other liquid waste - fresh water used for domestic purposes and discharged into the same sewer.

The invention is directed to the collection of domestic effluents that do not contain fecal and kitchen water already in the apartment, their transportation, cleaning and disinfection by known methods and recycling at least for technical purposes.

The implementation of the invention

A method of reducing fresh water consumption in a village involves separate drainage from residential apartments into two organized sewer drains by separately performing sewer piping in the apartment, a riser and an external sewer network, while sewage and sewage from the kitchen are drained into one of the sewers, and the remaining liquid waste is discharged into the second sewer, the water from the second sewer is sent for treatment and disinfection, brought to the level of technical dy and is recycled by using it in the urban economy.

It is known (see, for example, the book by A.F. Afanasyeva et al. “Purification of domestic water and the treatment of sludge”, p. 3-5) that on average 15-20% of wastewater is consumed by households as a household, for bath and shower - up to 20-25%, for toilet flushing - up to 35%, for washing clothes - up to 20%, moreover, toilet and kitchen drains contain up to 75% of the total amount of household waste pollution. If you send sewage from the toilet and kitchen (50-55% of sewage and up to 75% of the total amount of pollution) to the existing sewage system and organize a separate drain for the remaining sources of household waste, representing 45-50% of all sewage, then there will be about three times the pollution less - up to 25% of their total number. Moreover, each of the organized two effluents has its own specificity of pollution with its own technology for their cleaning and disinfection. It is also obvious that in the second case (without fecal water and food residues), the process of treating and disinfecting wastewater will be much shorter (easier, faster and cheaper) than in the first. That is, the effective bringing of the condition of this part of the wastewater, at least, to the level of industrial water used in municipal services (irrigation, construction, etc.) seems quite real. At the same time, 45-50% of all fresh water consumed by the settlement is returned to circulation.

Claims (1)

A method of reducing fresh water consumption in a village, including separate wastewater from residential apartments, characterized in that they organize two sewer drains by separately routing sewer pipes in the apartment, a riser and an external sewer network, while sewage is discharged into one of the sewers water and wastewater from the kitchen, and the remaining liquid waste is discharged into the second sewer, the water from the second sewer is fed for treatment and disinfection s is adjusted to the level of process water is recycled and, by using it in the municipal economy.