KR20100007391A - A disposal system to water for industrial use of trade water - Google Patents

Abstract

PURPOSE: A system for treating factory wastewater into water for industrial use is provided to prevent environmental contamination due to the wastewater, and to reduce processing costs for the water purified by a wastewater processing facility. CONSTITUTION: A system for treating factory wastewater into water for industrial use comprises the following: an adjusting bath(11) mixing precipitating agent and microbubbles, and connected to a processing raw water bath(60); a filtering bath(12) filtering impurities contained in raw water, and connected to the adjusting bath; a processing bath(13) supplying the stored filtered and processed water to the water for industrial use; and a sludge reservoir(14) supplying stored sludge to a waste water bath(61). The filtering bath has a pre-filtration bath(12a) and a micro-filtration bath(12b).

Description

A disposal system to water for industrial use of trade water}

The present invention relates to a water treatment system for plant wastewater, and more particularly, to supply the wastewater treated water generated in the plant and treated by the existing wastewater treatment facility to be purified again and reused as industrial water. The present invention relates to a water treatment system of a plant wastewater, which has a structure capable of minimizing the amount of water to be used, and greatly reducing the cost of water, while preventing wastewater from being discharged through the sewage.

In general, the conventional plant wastewater treatment system is a wastewater source storage tank for storing the wastewater generated in the factory, a sedimentation tank for sedimentation sludge contained in the wastewater source by sedimenting the wastewater source water supplied from the wastewater source water, and the settling tank A flocculant is added to the wastewater supplied through the flocculant to flocculate the waste oil contained in the wastewater and float it on the surface, and temporarily store the flotation tank for removing such sludge and the wastewater treatment water supplied from the flotation tank and discharge the stored treated water. It consists of a treatment water tank (process water tank).

However, the conventional plant wastewater treatment system discharges the wastewater treated in the treatment tank through the sewer. The wastewater treatment water is not completely purified but removes only waste oil and heavy sedimentation sludge from the foreign matter contained in the wastewater. Because it contains heavy metals and various harmful substances, pollution of rivers is inevitable, and the water used in the factory process is continuously supplied through tap water, so the water usage is high and the waste water treatment discharge is very high. There was a big problem.

The present invention has been made in view of the conventional problems as described above, the object of the water is to be purified from the wastewater treatment water generated in the factory and treated by the existing wastewater treatment facility to be purified again and reused as industrial water. It is to provide a water treatment system for factory wastewater, which can minimize the amount of water supplied and greatly reduce the water cost, while preventing wastewater from being discharged through the sewage.

An object of the present invention is connected to the raw water treatment tank for storing the raw water for processing the waste water generated in the waste water generated in the factory, the adjustment tank for mixing the precipitant and the micro-bubbles in the raw water; A filtration tank connected in communication with the adjustment tank to filter impurities contained in the raw water supplied from the adjustment tank; A treatment tank connected in communication with the filtration tank, storing the filtration treated water by passing through the filtration tank, and supplying the stored filtration treated water to be reused as water; The sludge discharge tank is connected to communicate with the filtration tank to store the sludge filtered and discharged in the filtration tank, and to be supplied to the wastewater source tank of the stored sludge wastewater treatment facility. It can be.

Water treatment system for plant wastewater according to the present invention is to minimize the amount of water supply through the tap water by reprocessing the treated water generated in the plant and treated by the existing waste water treatment facility to reuse the industrial water to reduce the water cost It can greatly reduce, and 100% reprocessing without wastewater treatment water discharged to the sewage is reused as plant water, it has the effect that it can reliably prevent environmental pollution.

Hereinafter, with reference to the accompanying drawings will be described a specific embodiment of the plant wastewater treatment system according to the present invention.

1 is a block diagram illustrating the configuration of the plant wastewater treatment system according to the present invention and the organic relationship between each component.

Referring to FIG. 1, the plant wastewater treatment system 10 according to the present invention includes an adjustment tank 11, a filtration tank 12, a treatment water tank 13, and a sludge storage tank 14.

The adjustment tank 11 is connected in communication with the raw water treatment tank 60 for storing the raw water for storing the treated water from the waste water generated in the factory to mix the treatment agent and the microbubbles in the raw water.

The treating agent is a coagulant such as NaOCl and the like, and an oxidizing agent and PAC. The oxidizing agent oxidizes Mn, Fe and the like contained in the wastewater, and the coagulant aggregates these oxides to facilitate the filtration treatment.

The filtration tank 12 is connected in communication with the adjustment tank 11 to filter impurities contained in the raw water supplied from the adjustment tank 11, such a filtration tank 12 is a pre-filtration tank (12a) and a microfiltration tank (12b) Is made of.

The preliminary filtration tank 12a is a filtration tank filled with sand (SAND), and filters and removes various foreign matters and flocculation flocs contained in the wastewater treatment water supplied from the adjustment tank 11.

The microfiltration tank 12b is an activated carbon filtration tank filled with activated carbon. The microfiltration tank 12b absorbs and removes organic substances and surfactants in the wastewater treatment water using the adsorption power of the activated carbon.

The treatment tank 13 is connected to the filtration tank 12 in communication with the filtration tank 12 to store the purified filtration treated water, and supplies the stored filtration treated water to reuse.

In addition, the treated water tank 13 is backwashed to supply the filtered water into the filtration tank 12 during the backwashing process of the filtration tank 12 (the process of washing the sludge filtered in the filtration tank 12 and discharging the washing water). It is connected with the filtration tank 12 (preliminary filtration tank 12a and the micro filtration tank 12b) by the supply pipe 13a.

The sludge storage tank 14 is connected in communication with the filtration tank 12 to store the sludge filtered and discharged in the filtration tank 12, and supplies to the waste water source tank 61 of the stored sludge wastewater treatment facility.

The sludge storage tank 14 is washed by backwashing water from the treatment tank 13 in the filtration tank 12 (preliminary filtration tank 12a and microfiltration tank 12b) rather than storing aggregated sludge. 12) backwashed water containing a large amount of sludge discharged is stored, and this backwashed water is sent to the wastewater source tank through a drain pipe connected to the wastewater source tank 61 for reprocessing.

Plant wastewater treatment system 10 according to the present invention having the configuration as described above is connected in communication with the end of the existing plant wastewater treatment plant re-processed wastewater treated water through the plant wastewater treatment plant to the plant water level. By treating and reusing it as water in the plant, there is no treated water discharged through the sewer, so that the environmental pollution caused by the discharge of wastewater treatment water can be reliably prevented while minimizing the amount of plant water supplied to the water supply, thereby greatly reducing the water cost.

1 is a block diagram illustrating the configuration of the plant wastewater treatment system according to the present invention and the organic relationship between each component.

Explanation of symbols on the main parts of the drawings

10: Water treatment system of factory wastewater 11: Adjustment tank

12: filtration tank 13: treatment tank

14: sludge storage tank

Claims (5)

An adjusting tank 11 connected in communication with a raw water treatment tank 60 for storing raw water for treating the wastewater generated in the factory and mixing the precipitant and the microbubbles with the raw water; A filtration tank 12 connected in communication with the adjustment tank 11 to filter impurities contained in the raw water supplied from the adjustment tank 11; A treatment tank (13) connected in communication with the filtration tank (12) to store the filtered filtration water through the filtration tank (12), and supply the stored filtration treatment water to be reused as water; The sludge storage tank 14 is connected to communicate with the filtration tank 12 to store the sludge filtered and discharged in the filtration tank 12 and to supply the waste water source tank 61 of the stored sludge wastewater treatment facility. Water treatment system for factory wastewater. The method of claim 1, The filtration tank 12, A pre-filtration tank 12a and a micro-filtration tank 12b for again filtering the filtered water passing through the pre-filtration tank 12a; The sludge storage tank 14, The preliminary filtration tank (12a) and the microfiltration tank (12b), each of the water treatment system of the plant wastewater, characterized in that connected in communication. The method of claim 2, The preliminary filtration tank 12a is a sand filter tank filled with sand (SAND) therein; The microfiltration tank (12b) is a water treatment system for plant wastewater, characterized in that the activated carbon tank filled with activated carbon therein. The method according to claim 1 or 2, The sludge storage tank 14, The water treatment system of the factory waste water, characterized in that the backwashed water (step of washing the sludge filtered in the filtration tank and the process of discharging the washing water) stored backwashed. The method of claim 1, The treatment tank 13, And a backwash water supply pipe (13a) connected to the filtration tank (12) to supply filtration water into the filtration tank (12) during the backwashing process of the filtration tank (12).

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