RU12690U1 - WATER TREATMENT PLANT - Google Patents

Abstract

(54) WATER TREATMENT PLANT

(57) Use; in the field of domestic and drinking water supply, in particular, for the purification of washing water of filter facilities, and can be used to create drainage-free water treatment systems. The essence of the utility model: the use of the installation allows to reduce water losses due to the creation of a drainless water treatment system, due to the fact that the installation containing the source water tank with a booster pump, a clarification filter, the waste water tank with the waste water pump, the wash water treatment unit with a sump and a mechanical unit for sludge dewatering, equipped with a clarified water tank with a recirculation pump, a washing water treatment unit equipped with a reagent treatment tank with a pump an ohm dispenser installed in front of the sump, a compacted sludge tank with a compacted sludge pump and a cartridge filter for settling water, and the mechanical sludge dewatering unit is equipped with a centrate filter cartridge. 1 silt, 1 s. n f-ly.

to the certificate of the Russian Federation for utility model № ABSTRACT

Description

WATER TREATMENT PLANT

The utility model relates to the field of domestic and drinking water supply, in particular, to the treatment of wash water of filter facilities, and can be used to create drainage-free water treatment systems

There are various schemes of filtering facilities, including technological units for the treatment of wash water. The washing water of the clarification filters contains a significant amount of contaminants that must be removed before returning the washing water to the “head of structures or dumping it into the sewer or body of water.

A known installation for water treatment, containing a source of water with a booster pump, a clarification filter with a waste water tank with a recirculation pump installed after it, a wash water tank with a wash pump, a regenerated filter for cleaning primary wash water, made in the form of a removable cartridge filter, and a secondary washing water treatment unit made in the form of a regenerable or non-regenerable cartridge filter of a removable type / Utility Model Certificate of the Russian Federation No. 8695, C02F 1 / 00, 1998 /.

The disadvantage of this installation is the need for frequent regeneration of the cartridge filter of the primary treatment of washing water and frequent replacement of the removable filter element of the secondary water treatment.

The closest in technical essence to the proposed one is a water treatment plant comprising a source water tank with a booster pump, a clarification filter, a wash water tank with a wash pump, a primary wash water treatment unit containing a regenerated filter, and a secondary wash water treatment unit, consisting of sequentially located sump and device for mechanical sludge dewatering Wash water from the clarification filter is collected in a wash water tank equipped with a wash th the pump supplying the washing water to the primary regenerable filter for cleaning the primary scrubbing water contained in the wash water before filtering the slurry comprising aluminum hydroxide, homogenized until a uniform suspension state by creating turbulent flow of water using the washing pump. Filtration is completed when the filtrate reaches a suspended solids content of 10 mg / l, which is due to the requirements of SNiP regarding the maximum permissible suspension content in water used for washing clarification filters. At the end of the filter cycle, the charge is regenerated, and the secondary washing water is sent to sedimentation. and the resulting precipitate is subjected to vacuum dehydration. / USSR author's certificate No. 969293, VO ID 37/00, C02F 1/00, 1982 /

When treating wash water by settling, it takes a long time, which requires large areas of structures to separate sludge. In this case, the required effect of clarification of the wash water is not always achieved even by increasing the settling time, which does not allow returning water to the “head of structures or dumping it into a reservoir

The disadvantages of the known installation are environmental pollution during discharge of sludge into a reservoir or the need for large areas of facilities for separation of sludge, as well as high water consumption for own needs.

The technological effect of using the proposed installation is to reduce water loss by creating a drainless water treatment system.

Installation for water treatment is shown in the drawing

The installation comprises a source water tank 1 with a booster pump 2, a clarification filter 3, a waste wash water tank 4 with a waste wash water pump 5, a reagent treatment tank 6 with a metering pump 7, a thin layer sump 8, a cartridge filter for settled water 9, a compacted sludge tank 10 with a compacted sludge pump 11, a device for mechanical dewatering of sludge 12 with a tank for dehydrated sludge 13, a centrate filter cartridge 14 and a clarified water tank 15 with a recirculation pump 16.

Installation works as follows

The source water to be treated is fed into the source water tank 1, from where it is sent by a booster pump 2 to the clarification filter 3 for purification, from where the filtrate is sent to the consumer. At the end of the filter cycle, the loading of the clarification filter 3 is regenerated by washing it with water supplied from the clarified water tank 15 by recirculation. pump 16 In the process of passing the wash water through the filter 3, it becomes saturated with contaminants washed out of the filter load of the clarification filter 3. The wash water is fed to bone spent wash water 4, where it spent wash water pump 5 is supplied into the cleaning thin-layer settler 8, after pretreatment its reagent metering pump fed from the tank 7

reagent treatment 6 Settled water in a thin-layer sump 8 is fed into the cartridge filter of settled water 9, from which the purified wash water enters the clarified water tank 15 and is used to wash the clarification filter 3. The precipitate formed in the thin-layer settler 8 enters the compacted sludge tank 10, from where the compacted sludge pump 11 is fed to the device for mechanical dewatering of sludge 12. In the device 12, water is fed for purification to the cartridge filter of the centrate 14, and then to the clarified container 15, and the dehydrated sludge enters the tank for dehydrated sludge (cake) 13 and can be used as a reagent and / or discharged. Spent removable cartridge filter elements 9 and 14 are replaced with new ones and disposed of or regenerated depending on the material from which they are made.

Thus, the installation proposed for use allows you to create a drainless water treatment system, which leads to significant water savings. At the same time, the probability of re-pollution of the environment due to the discharge of contaminated flushing water into water bodies is practically excluded.

Claims (2)

1. Installation for water treatment, containing a source of water with a booster pump, a clarification filter, a waste water tank with a waste water pump, a washing water purification unit with a sump and a mechanical sludge dewatering unit, characterized in that it is equipped with a clarified water tank with recirculation pump, the wash water treatment unit is equipped with a reagent treatment tank with a metering pump installed in front of the sump, a compacted sludge tank with a compacted sludge pump and otstoennoy water filter cartridge and a mechanical sludge dewatering unit is provided with a cartridge filter of supernatant. 2. Installation for water treatment according to claim 1, characterized in that the sump of the washing water treatment unit is made thin-layer.