KR20010001547A - Apparatus for remoming seaweeds using filter - Google Patents

Abstract

PURPOSE: Provided is an algae removal equipment using coagulation and filtration. The equipment is applicable to algae removal in reservoir. CONSTITUTION: The equipment is characterized by the following devices: a raw water pumping device (10) to pump raw water of reservoir; a coagulant injection device (20) to inject coagulant when raw water fluctuate; a filtration device (30) for filtration of raw water; a pipe line (40) for connection of the pumping device (10), the coagulant injection device (20), and the filtration device (30); a flotation object (50) for flotation of the above devices.

Description

Apparatus for remoming seaweeds using filter

The present invention relates to an algae removal device using flocculation filtration, and more particularly, raw water pumping means for flowing raw water of a reservoir having a relatively low flow rate, flocculant dispensing means for administering a flocculant while flowing the raw water, and Filtration means for filtering the raw water through the raw water flow means and the coagulant dispensing means, a pipeline connecting the raw water flow means and the coagulant dispensing means to the filtration means, the raw water flow means, the coagulant dispensing means, and the filtration means; It includes an artificial buoy which floats the pipeline to be fixed on the water, and rotates the water through the raw water pumping means, and filters the precipitant and then filters it with a filter to remove contaminants generated in the artificial wetland. The present invention relates to an algae removal device using coagulation filtration.

In general, algae species that cause hydration (ALGAE BLOOM) are about 30-50μm in size, and algae particles have the potential of repulsion due to the surface charge forming a double layer of diffusion electricity, and the algae generated by the adsorption of water particles on the surface of algae cells. It is adsorbed by the hydrophilic algae of the cell and is present in the state of macromolecule, and has stability by cell secreting organic matter. Stable algae particles have surface-floating ability due to the presence of bubbles in the cell and move according to the intensity of light. Some algae species float on the surface with long rings, forming clusters.

Conventional algae removal techniques include centrifugal separation, microstraining, and injuries.However, algae are removed using a mechanical system, which is complicated to operate and has a high energy consumption. Used to be reviewed and applied.

Currently, when treating algae grown in most artificial lakes, only algae or flocculant is applied to kill algae. However, these methods have only a temporary effect, and as time passes, algae particles that have settled on the lake floor after resuscitation may be re-emerged, and a large amount of organic matter is generated by the killed algae itself, causing a massive growth of bacteria and Decomposition of organic matter by oxygen consumes oxygen and depletes oxygen in water bodies, causing the death of aquatic organisms, and the resulting nutrients act as internal pollutants and are used by algae to reproduce lake water deterioration. In addition, when used as a water source can cause a number of secondary problems, such as causing algae taste and smell by the algae during the water treatment and promote the production of THMs.

The present invention is to solve the above problems,

The front part is composed of a mixed flocculation device and the post-treatment part is composed of a cylindrical plastic filter to remove algae particles generated after flocculation. The aim is to provide a water quality improvement system in conjunction with the filtration process.

As a means for achieving the above object,

The present invention is to install a buoyancy buoy at the bottom artificial buoy made to maintain a floating state on the water,

Coagulant storage tank with the coagulant is installed on top of the artificial part and aggregates contaminants,

Coagulant transfer pump for transferring the coagulant from the coagulant storage tank,

A raw water inflow pump connected to the pipe through the artificial buoy and introducing raw water;

A three-way valve installed at a portion where the output line of the raw water inflow pump and the output line of the coagulant transfer pump are connected to control the common output to precipitate and output pollutants of raw water;

Bypass valve to induce a bypass if a certain pressure,

It is characterized by including a filter for filtering and discharge the precipitated contaminants passed through the three-way valve.

1 is a block diagram of the present invention.

Explanation of symbols on the main parts of the drawings

10: raw water pumping means 20: flocculant conveying means

30: filtering means 40: pipeline

50: artificial part 60: 3-way valve

70: bypass valve

Hereinafter, the present invention will be described in more detail.

In general, algae removal is to neutralize the surface charge of algae particles by administering flocculant or to destroy the stability (→ instability-induced) by destroying the stability through the coagulation mechanism by the adsorption and cross-linking action and the fine particles on the colloid surface. Can be removed.

In other words, the chemicals used in the flocculation reaction can be applied to iron salts or aluminum salts generally used for water treatment, and the hydrolysis or polymerization reaction by these flocculants is very fast and usually occurs within 1 second.

And with regard to the destabilization mechanism, the mixing should be completed in a few seconds and if the mixing takes place for longer periods of time the smaller flocs already formed will be destroyed, resulting in a longer flocculation time after mixing.

Therefore, when applying the flocculant, sufficient mixing energy is required and the mixing time should be short enough to achieve optimum mixing in the water to be treated.

In this device, a static mixer is used to make the suspended solids and the coagulant sufficiently contact in a short time.

In addition, when the flocculant transfer pump is contacted with the flocculant and the treated water and passed through the static mixer, and the rapid stirring is performed, the stability of the algae particles is broken and the generation of the floc begins. The treated water then enters the settling filtration unit. The inside of the settling filtration system is surrounded by filter cloth so that the fine flocs are caught in the settling filtration system and the treated water is allowed to flow out.

1 is a block diagram of the present invention, the water treatment apparatus using the artificial buoy of the present invention,

Raw water pumping means 10 for pumping and flowing the raw water of the reservoir with a relatively low flow rate of flow,

Coagulant dispensing means 20 for administering a coagulant during the flow of the raw water,

Filtration means 30 for filtering the raw water through the raw water flow means 10 and the flocculant dispensing means 20,

A pipe line 40 connecting the output ends of the raw water flow means 10 and the coagulant dispensing means 20 to a common connection to the filtration means 30;

The raw water flow means 10, the flocculant dispensing means 20, the filtration means 30 and the pipeline 40 is composed of an artificial buoy 50 to be fixed to be fixed on the water.

Here, the raw water inflow pump 10 is used to install the raw water inlet pump to raise the raw water located in the lower portion through the pipe to the artificial portion 50, the coagulant dispensing means 20 is stored to store the coagulant in advance It consists of a tank 21 and a coagulant transfer pump 22 which transfers a coagulant from the coagulant storage tank 21.

And the water treatment apparatus of the present invention, the output line of the raw water inlet pump and the output line of the coagulant transfer pump is installed in the part connected to the three-way valve 60 for controlling the common output to precipitate and output the raw water contaminants and ,

It is configured to further include a bypass valve 70 for inducing to bypass if the pressure provided to the filter is a predetermined value or more.

23 is a reverse valve for preventing reverse circulation.

The present invention configured as described above is provided with an artificial buoy 50 having a buoyancy providing device 51 mounted on the bottom bar, the buoyancy providing device so that the artificial buoy 50 of a certain size can be stopped on the water surface Provide buoyancy.

In addition, the artificial buoy 50 is provided with a device for filtering contaminants and flowing contaminated water at a constant rate so that atmospheric oxygen is introduced, specifically, a raw water inflow pump 10 for introducing raw water and a flocculant. It comprises a coagulant storage tank 21 for storing the coagulant, a coagulant transfer pump 22 for transferring the coagulant, and a filter 30 for filtering the contaminated water precipitated by the coagulant.

The raw water inflow pump 10 is a device for flowing raw water having almost no flow of water such as a lake or a puddle. The raw water is installed at the top of the artificial buoy 50 and has a pipeline penetrating the artificial buoy. Up.

Then, the coagulant storage tank 21 has a coagulant for agglomerating contaminated water, and the coagulant transfer pump 22 is designed to flow out during operation.

And, the pipeline 40 for conveying the raw water and the coagulant is largely divided into the inlet water feed line 41, the coagulant feed line 42, and the common output line for outputting the combined input water and the coagulant in one line ( 43), the contaminated raw water is precipitated by the flocculant in the common output line.

The common output line 43 is provided with a three-way valve 60 to control the amount of coagulant included in the inflow water output through the inlet feed line and the coagulant transfer line.

In addition, the common output line 43 is connected to the filter 30 to flow the inflow water precipitated in the filter 30, the bypass line 44 is connected to the intermediate point of the common output line 43, the filter If the pressure increases above a certain level, the raw water is immediately bypassed.

That is, when the pressure gauge 31 is installed on the upper part of the filter 30 to exceed the filtration reference value, the medium passes through the filter to serve to regulate the raw water passing through the filter to be constant.

On the other hand, according to the pressure of the filter 30, the amount bypassed above, although it contains a contaminant flocculant, because it is a small amount does not have a significant effect on the water.

Therefore, when using the present invention, because the contaminants are automatically precipitated in the filter, the filter must be replaced every predetermined time, thereby providing convenience that the operator does not have to touch.

Eventually, the water purification device composed of coagulation and filtration processes made a floating frame with a buoy around it and placed it on the floating frame to make it easy to move to the point where a large amount of algae occurred. It is expected that it can be effectively applied in identity waters with long residence time and long residence time.

In addition to the removal of algae and suspended solids, it is possible to provide the advantage of improving the water quality of the identity area by flocculation and precipitation of the colloidal organic matter in the treated water, and inducing chemical precipitation of phosphorus.

As described above, the present invention is composed of a filter unit made of a cylindrical plastic material to remove the algae particles generated after the flocculation unit, the post-treatment part is a source of coagulation, the front part is easy to operate and a short time by a simple physicochemical method To effectively control algae.

Claims (3)

Raw water pumping means 10 for pumping and flowing the raw water of the reservoir with a relatively low flow rate of flow, Coagulant dispensing means 20 for administering a coagulant during the flow of the raw water, Filtration means 30 for filtering the raw water through the raw water flow means 10 and the flocculant dispensing means 20, A pipe line 40 connecting the output ends of the raw water flow means 10 and the coagulant dispensing means 20 to a common connection to the filtration means 30; Algae using coagulation filtration, characterized in that the raw water flow means 10, the flocculant dispensing means 20, the filtration means 30, and an artificial buoy 50 to float to be fixed on the water Removal device. The method of claim 1, For controlling the coagulant administration of the raw water to the portion connected to the output line 41 of the raw water pumping means 10 and the output line 42 and the connecting line 43 of the filtration means 30 of the coagulant dispensing means 20 Algae removal device using coagulation filtration, characterized in that the three-way valve 60 is installed. The method of claim 2, The pipeline 43 of the filtering means 30 is provided with a bypass line 44 and a bypass valve 70 for inducing a bypass if the pressure provided to the filtering means 30 is equal to or higher than a predetermined value. Algae removal device using coagulation filtration.