KR101355177B1 - Water treating agent for removing green algae, red algae and odors in water - Google Patents

Abstract

The present invention relates to a water treating agent for removing green algae, red algae, and/or odor from water, more specifically a water treating agent for removing green algae, red algae, and/or odor from water using natural materials including charcoal, quicklime, white clay powder, yellow soil powder, and salt. According to the present invention, the water treating agent absorbs and decoposes microorganisms which causes the generation of red and green algae, offers a contamination treatment effect in short time, and does not cause secondary contamination or the production of harmful materials by using environmentally friendly natural minerals. The water treating agent uses natural mineral materials which can be unlimitedly obtained from the nature with low cost, does not need a large scale production facility, and is easy to use.

Description

Water Treatment Agent for Removing Green Algae and / or Odor {Water Treating Agent for Removing Green Algae, Red Algae and Odors in Water}

The present invention relates to a water treatment agent for removing rust, red tide and / or odor and a water treatment method using the same. More specifically, the present invention relates to rust and charcoal including natural substances such as salt, charcoal, quicklime, white clay powder, ocher powder and oyster shell powder. The present invention relates to a water treatment agent for removing red tide and / or odor and a water treatment method using the same.

Green algae is a phenomenon in which algae microorganisms multiply in water and release green paint in the upper part of the water. Fertilizers and pesticides such as decaying organic pollutants, trace metals and growth promoting substances such as phosphorus (P) and nitrogen (N) When living sewage, which contains a large amount of nutrients, is abundantly introduced into the water and the water temperature rises to create an environment suitable for the growth of plankton, a large amount of algae microorganisms are reproduced in a short time. Green algae-causing organisms (phytoplankton) are mostly southern algae, but are often caused by ciliary reptiles, a kind of protozoa.

Hundreds of billions of billion won of environmental damages are caused by harmful green algae that occur from May to October every year. Green algae are easily generated at high or slow flow rates, such as solidified dams, reservoirs, lakes, golf course hazards, ponds, freshwater farms, and fishing grounds. Most of the green algae found in Korea are a kind of southern algae.

When algae begin to develop, the rate of reproduction of algae microbes increases exponentially, and most of the algae absorb the oxygen content of the water, causing the water to rapidly eutrophicate (oxygen deficiency), causing severe odors. Fishes in the water, due to lack of oxygen and algae attached to the gills, have difficulty breathing due to the change of water temperature due to difficulty in breathing. The frequency, area and duration of green algae are increasing all over the world. Increasing nutrients during heat waves and droughts causes algal blooms in rivers and lakes to destroy ecosystems in aquatic environments as well as cause problems for terrestrial animals.

The presently used method to solve the green algae is shown in Table 1.

Algae removal technology Kinds system Advantages Disadvantages One Aberration Rotating like a watermill, artificially mixing water. Oxygen supply to the bottom Prevents phosphorus from melting out of the riverbed and prevents death of fish Water quality improvement effect against installation cost 2 ultrasonic wave Destroy the algae's air pockets, sinking the algae under water Eco-friendly green algae removal Unavailable in large area, high maintenance cost 3 Green algae Installation and operation of green algae suction rack recovery device on ship Environmentally friendly treatment High maintenance costs 4 ocher Clumping exhausted Temporary green algae removal effect Blocks sunlight to disrupt ecosystems and cause secondary pollution 5 Agicide Destruction of algae with copper sulfate Algal growth inhibition, fast treatment effect Ecological damage concerns, high disposal costs

Red tide is a phenomenon in which the seawater is red due to the explosive generation of plankton, which is rich in perishable organic contaminants, trace metals, and growth-promoting substances, such as domestic sewage such as phosphorus (P) and nitrogen (N). If the environment is suitable for propagation of plankton by the inflow of seawater and rising of seawater temperature, the plankton is reproduced in large quantities in a short time. Most of the organisms causing red tide (phytoplankton) are flagella algae and diatoms, but ciliary reptiles, which are euglenas or protozoa, may be the cause.

Hundreds of billions of fishermen's damage is caused by the harmful red tide that occurs between June and September every year. Red tide starts to occur early in the vicinity of Yeosu and Wando, Jeonnam, when the sea water temperature exceeds 23 ℃ for an average of three days, and spreads very quickly to the waters near Pohang when it is severely located in Masan and Tongyeong. Although red tide occurs not only in Korea but also in Japan, the United States, Kenya, and Mexico every year, the red tide is very toxic enough to kill meat in many fish farms at once. It's been a long time. In Korea, the frequency, area, and period of red tide are increasing year by year, and the amount of damage and the pain of fishermen are increasing.

Table 2 summarizes the methods currently used as red tide removal methods to solve the red tide phenomenon.

How to remove red tide division Contents characteristic Remarks One Wavelength Remove red tide using electromagnetic waves / ultrasound Reduction of Coclodinium as a Red Tide Caused by Microwave High red tide relief 2 Electrolysis Electrolyze seawater to create sterilizing substance NaOCl "to remove red tide Sterilize and eliminate red tide Unlike the yellow soil spray method, there is little possibility of secondary environmental pollution 3 Zeolite
How to use A method of relieving red tide by adsorbing red tide and depositing it into the sea by using zeolites widely used as detergents, catalysts and adsorbents. 95% red tide precipitation rate 10 times higher red tide sedimentation rate with less than yellow soil 4 Magnesium hydroxide
Usage Red tide remedy by extracting magnesium in seawater and using magnesium hydroxide Indirect remedy method to remove red tide by blocking the food chain by reducing phosphorus (P) and nitrogen (N) components that feed red tide organisms Effect of inhibiting the dissolution of heavy metals such as chromium (Cr) and lead (Pb) contained in marine sediments 5 Natural enemies
How it worked How to get rid of red tide by using animal plankton, which is a natural enemy of phytoplankton that causes red tide, and natural microorganisms that are highly specific to red tide. Environmentally friendly Low cost 6 Ozone treatment Red tide remedy by using sterilizing power of ozone (O3) May adversely affect other microorganisms as well as red tide Low cost 7 Ocher Spray Red tide rescue by colloidal particles of ocher flocculating red tide Some red tide rises again or settles in the sea after precipitation, causing secondary environmental pollution. Low cost 8 Ocher + flocculation aids Method for preparing red tide remover by inserting various coagulant aids into loess as additive Utilizes to add red tide coagulant effect or decrease turbidity by adding adjuvant to loess Increased red tide effect 9 Bio Control Method How to remove red tide by extracting active or bactericidal substances from marine microorganisms or plants Environmentally friendly High relief 10 Chemical spraying Red tide relief by using highly efficient chemicals to remove red tide Difficult to research and develop environmentally friendly chemicals High relief efficiency
Low cost
Red tide relief in a short time

Existing methods of removing and removing red tide organisms include chemical spraying, ultrasonic treatment, ozone treatment, and bio-control, which destroy or kill red tide, but for industrial use, mass production, large scale spraying and It must be competitive in price because it should not affect the seabed ecosystem, be easy to transport and simple to use.

In order to prevent and remove rust and red tide, fresh loess spreading method is used. In general, yellow loess is a material that can be easily obtained anywhere, no harm to living organisms, and it is proved to be harmless in the dissolution test under the Japanese Marine Pollution Prevention Act. The role of the material circulation and natural purification is great, and in particular, the colloidal particles of ocher have the advantage of adsorbing and agglomerating suspended substances in seawater, which can be used as a material for removing rust and red tide microorganisms.

However, if the raw raw clay, which is not purified and processed, is sprayed directly into the sea, the loess and impurities are settled as it is, so there is no time for adsorption and aggregation of rust and red tide organisms, resulting in poor rust and red tide removal efficiency. There is a problem that can cause secondary environmental pollution of the seabed sediment because it is dumped to the sea in the state.

Water treatment agents are chemicals used to facilitate physical, chemical and biological water treatment. In the case of drinking water, it is important to satisfy the water quality standards of raw water and purified water in the case of drinking water and to prove the safety of health. In the case of sewage treatment, it is necessary to consider the water quality of influent and effluent. In Korea, the discharged water quality standards of sewage treatment plants are uniformly applied according to the provisions of the Water Quality and Environmental Conservation Act, and in the future, it is expected that the differential standards considering the characteristics of each water system and region will be applied by implementing the total pollutant regulation system. For example, in the United States and European Union countries, the discharge water quality standards are differentially applied according to the pollutant loads on the receiving streams by region and water system.In Japan, the national discharge water quality standards are similar to those of Korea, but separate by local governments. The discharge water quality standard of the country is applied.

In Korea, 20 species are designated as water treatment agents, 7 species including aluminum sulfate as a flocculant, 5 species including chlorine as a disinfectant disinfectant, 1 species as antirust agent, and 7 types including activated carbon as other agents. In addition, there are 17 kinds of items in which two or more kinds of water treatment agents have been approved for self-quality standards and specifications (Table 3).

Status of Water Treatment System in Korea Usage Product Name Notice Let's have quality system 20 17 Yes Polyaluminum Chloride
Aluminum sulfate
Polyaluminum Silicate
Polyaluminum Hydroxide
Ferric Sulphate
Ferric Chloride
Sodium alginate

Polyorganic Aluminum Sulfate
Organic Polymer Aluminum Sulfate
Polyorganic Aluminum Sulfate-M
Poly Aluminum Magnesium Sulfate
-Name of Coa
-DMC
Ferric Aluminum Sulfate
-PAC Ferric Sulphate Mixture Composition
Chitosan-based polyaluminum chloride
Chitosan liquid aluminum sulfate
Polysilica Alumina Sterilization
·
disinfectant Highly bleached powder
Liquid Chlorine
Sodium hypochlorite
Chlorine Dioxide
-ozone Antirust agent Antirust Other Calcium hydroxide (slaked lime)
Activated Carbon
-Hwangsandong
Sodium hydroxide (liquid)
Zeolite
-Light
-Sulfuric acid -SCI-62
-HANCLEAN
-FILDCLEAN
-HANCLEAN-X
-Earth Tec
Zeocarbon

In addition to hate facilities such as wastewater treatment plants, there are many kinds of odor-producing substances, including ammonia, in our surroundings. Normally, even odors generated in the human body include sulfur compounds such as hydrogen sulfide and mercaptan, nitrogen compounds such as ammonia, scatol and amine, and fatty acids such as formic acid and acetic acid. In recent years, as the standard of living improves, the unpleasant odor of life is regarded as pollution, and the regulation by relevant laws is tightened.

Conventional deodorization methods for removing such odors include chemical deodorization (masking), which is supplemented by olfactory smell or fragrance, and chemical deodorization and activated carbon decomposed by oxidation, reduction, neutralization, and side reactions. It is roughly classified into a physical adsorption method using a porous material such as silica gel and a biological deodorization method using a microorganism or an enzyme.

However, natural and synthetic fragrances in chemical deodorization have so many kinds that the ingredients are not known, but respiratory and skin troubles are easily caused by toxicity, and the physical adsorption method again increases with increasing temperature and pressure during use. It is easy to regenerate, and the biological deodorization method is not stable due to the large difference in activity depending on the temperature and humidity conditions.

Chemical deodorization is one of the most promising areas for development, but it still has its own limitations in ensuring satisfactory deodorizing power.

The deodorant used in such a deodorant method is to use a deodorant mainly composed of chemical components, the deodorant composed of this chemical component is made of strong acid, harmful to the human body has a problem that is unsafe and causes many side effects in use have.

Deodorants made of conventional chemicals are not only harmful to the human body, but also harmful to the human body in the process of deodorization. The fragrance or naphthalene, which is used to remove odors, causes chemical reactions with ammonia, that is, chemical reaction with NH3, and does not decompose and remove odors by changing the molecular structure of ammonia. Is more indirect than the odor to be decomposed and removed, and thus the user is only an indirect deodorizing function to prevent the user from the odor caused by ammonia.

These deodorants emit a stronger odor than conventional odors, so that the user cannot distinguish odors by the strong scent of chemicals, so that the user feels the illusion that the odor is removed. It just causes the effect.

Conventional patents for water treatment agents using natural products include sea tide removal for charcoal and ocher (Korea Patent Publication 2004-0014103), ocher-carpok fiber composites for the removal of green algae or red tide and methods for their preparation (Korean Patent No. 0819460), using acidic clay There is a composition for combating green algae (Korean Patent No. 0711900), a deodorant composition using natural materials (Korean Laid-Open Patent No. 2011-0080454) and the like, but green algae, red tide and / or odor removal efficiency are not high.

Accordingly, the present inventors have made efforts to solve the above problems, as a result, to prepare a water treatment agent using salt water, loess powder, white clay powder, oyster shell powder, charcoal and quicklime, using the green algae, red tide and / or odor effectively It confirmed that it was removed and this invention was completed.

It is an object of the present invention to provide a water treatment agent for removing rust, red tide and / or odor and a water treatment method using the same.

In order to achieve the above object, the present invention (a) 1 to 10% (w / v) 100 parts by weight of brine, 0.01 to 10 parts by weight of ocher powder, 0.01 to 10 parts by weight of clay powder and 0.01 to 10 parts by weight of oyster shell powder 100 parts by weight of the precipitate obtained by electrolyzing the mixed solution of 0.5 parts and then precipitated for 0.5 to 24 hours (first agent); (b) 10 to 500 parts by weight of supernatant obtained by stirring 100 parts by weight of 1 to 10% (w / v) brine, 0.01 to 50 parts by weight of charcoal and 0.01 to 30 parts by weight of quicklime, followed by precipitation for 0.5 to 24 hours. ); And (c) 100 parts by weight of 1 to 10% (w / v) brine, 0.01 to 10 parts by weight of clay powder and 0.01 to 10 parts by weight of ocher powder, followed by precipitation of 0.5 to 24 hours and 10 to 500 parts by weight of supernatant. Provided is a water treatment agent for rust, red tide and / or odor removal, comprising (3).

The present invention also provides (a) green algae contaminated water, red algae contaminated water, mixed contaminated water of green algae and red tide, or 1 to 10% (w / v) brine contaminated water in 1 L of contaminated odor-causing substances, ocher 0.01 to 10 Parts by weight, 0.01-10 parts by weight of clay and 0.01-10 parts by weight of oyster shell powder were electrolyzed and then precipitated for 0.5-24 hours to add 1-10 g of precipitate, followed by stirring for 0.1-24 hours to produce green algae, red tide, or Agglomerating malodor causing substances; And (b) stirring (i) 100 parts by weight of 1 to 10% (w / v) brine, 0.01 to 10 parts by weight of charcoal and 0.01 to 10 parts by weight of quicklime, followed by precipitation for 0.5 to 24 hours. 0.1 to 50 ml of supernatant and (ii) 100 parts by weight of 1-10% (w / v) brine, 0.01 to 10 parts by weight of clay powder and 0.01 to 10 parts by weight of ocher powder, followed by precipitation for 0.5 to 24 hours It provides a water treatment method for removing the green alga, red tide or odor including the step of adding ~ 50ml, stirred for 0.1 to 24 hours and then settling.

According to the present invention, by adsorbing and decomposing microorganisms that cause rust and red tide can exhibit a pollution improvement effect in a short time, by using environmentally friendly natural minerals, no harmful substances are produced or secondary pollution problems. In addition, it uses natural mineral materials that can be infinitely extracted at low cost in nature, does not require large-scale manufacturing facilities, and is easy to use, which is useful for removing rust, red tide and / or odor.

Figure 1 shows before and after the treatment of the water treatment agent according to the present invention in the green algae contaminants.
Figure 2 shows before and after the treatment of the water treatment agent according to the present invention in red tide contaminants.

In one aspect, the present invention provides a mixture of (a) 100 parts by weight of 1 to 10% (w / v) brine, 0.01 to 10 parts by weight of ocher powder, 0.01 to 10 parts by weight of clay powder and 0.01 to 10 parts by weight of oyster shell powder. 100 parts by weight of the precipitate obtained by decomposition and settling for 0.5 to 24 hours (agent 1); (b) 10 to 500 parts by weight of supernatant obtained by stirring 100 parts by weight of 1 to 10% (w / v) brine, 0.01 to 50 parts by weight of charcoal and 0.01 to 30 parts by weight of quicklime, followed by precipitation for 0.5 to 24 hours. ); And (c) 100 parts by weight of 1 to 10% (w / v) brine, 0.01 to 10 parts by weight of clay powder and 0.01 to 10 parts by weight of ocher powder, followed by precipitation of 0.5 to 24 hours and 10 to 500 parts by weight of supernatant. The present invention relates to a water treatment agent for rust, red tide and / or odor removal, comprising (3).

Salt has a bactericidal, disinfecting, antiseptic and deodorizing effect, of which the bactericidal or bacterial growth inhibitory effect is due to the osmotic action of the salt. Brine takes the form of sodium hypochlorite (NaOCl) by the electrolysis reaction, and chlorine hypochlorite, as is widely known, is used for water purification plants, sterilizers for sewage treatment plants, cooling water boilers for general chemical plants, desalination process water and cooling water for power plants. It is a colorless transparent liquid with a strong chlorine odor that is used as a treatment, drinking water treatment, plants and vegetables, meat processing, off-pool laundry and papermaking, household bleach.

In the present invention, the concentration of the brine is preferably 1 to 10%, preferably within the range of 2 to 5%. If it is less than 1%, the effect of rust and red tide is not effective, and if it is more than 10%, the effect difference is not as large as it is used at 10%, which is not efficient.

Loess is a material that can be easily obtained anywhere, harmless to living organisms, and proved to be harmless in the dissolution test under the Japan Marine Pollution Prevention Act, and it plays a large role in natural circulation of material circulation and natural purification. It has the property of adsorbing and agglomerating material, so it can be used as a material for removing red tide.

However, if the raw raw loess which is not refined and processed is applied to the sea as it is, the loess and impurities are settled as it is, so there is no time for adsorption and aggregation of the red tide organisms. Because of dumping, there is a problem that can cause secondary environmental pollution of the seabed.

In the case of ocher powder, rather than rapidly settling in the seawater, it is widely dispersed and dispersed in the seawater, causing sufficient collision with the red tide organisms, forming adsorption and aggregates, and settling. Since the bio-forming layer is about 3 ~ 5m deep to form red tide bands, spraying by various particle size distribution of ocher powder is able to adsorb and remove red tide organisms according to the particle level as the ocher particles settle in the sea surface within a short time. Appropriate amount spraying can effectively control rust and red tide.

The physical forces of ocher particles in seawater are settling and diffusion. As the size of ocher particles increases, the settling velocity of the particles increases geometrically and the diffusion velocity of the particles decreases geometrically. Here, the sedimentation speed is the speed at which the particles sink in the vertical direction by gravity, and the diffusion speed is the speed at which the particles spread out in the horizontal and vertical directions by colliding with the water molecules.

The physicochemical forces of the ocher particles themselves in seawater are attractive and repulsive forces. Seawater is a high concentration of electrolyte solution and ocher particles exhibit very thin electrical double layers in seawater, so there is little repulsive force between mutually approaching ocher particles. Only the attraction force acts to easily form flocculation.

In the present invention, the adsorption principle of the ocher powder is widely dispersed in seawater, causing sufficient collision with the red tide organisms, and the red tide organisms by the attractive force between the colloid particles of the ocher powder are adsorbed to the pore layer and the surface layer of the ocher powder by high temperature drying. As the molecules are adsorbed, they settle naturally to remove red tide.

In the present invention, the content of ocher is preferably used in an amount of 0.01 to 10 parts by weight, more preferably 0.05 to 5 parts by weight in the first agent and the third agent. When the yellow soil content is less than 0.01 parts by weight, the adsorption agglomeration efficiency or deodorization efficiency of the green and red tide organisms decreases, and when the mixture exceeds 10 parts by weight, the mixing amount of the white clay powder or the oyster shell powder is relatively decreased, and thus the control efficiency of the green and red tide organisms is reduced. There is a problem with this falling.

Clay is a clay composed of extremely fine powder mainly composed of clay mineral montmorillonite. It is similar to bentonite to the extent that it is thought to be produced by surface weathering of bentonite. The adsorptive catalyst is strong, but it does not swell very much even if it contains water, and its activity is slightly high. There are white, yellow, and blue, which are usually pale yellow. The composition is about 70% of silicon dioxide, and aluminum oxide, iron oxide, magnesium oxide, and the like, and the ignition loss (burn loss) is reduced. The pH of the suspension is 5-6. It is used in bleaching agents, desiccants, adsorbents, ceramics, hard water softeners, pharmaceuticals, pesticides and extenders of powdered soaps, bleaches of old newspapers, catalysts in organic chemical reactions, conversion of sugars, sugaring agents of starches, raw materials of lakes and the like.

In the present invention, the content of clay is preferably 0.01 to 10 parts by weight, more preferably 0.05 to 5 parts by weight, in the first agent and the third agent. If the content of the clay is less than 0.01, the adsorption agglomeration efficiency or deodorization efficiency of the rust, red tide organisms is lowered, and if it exceeds 10 parts by weight, there is a problem that the acidity is strong and may damage the environment.

Oyster shell chemical composition is more than 95% CaCO3, the remainder is composed of inorganic substances such as SiO2, MgO, Al2O3, Na2O, SO3. Oyster shell has good chemical adsorption power as well as physical adsorption power, so it has high efficiency of removing heavy metals or phosphorus components from waste water. In addition, since the oyster shell has a carrier property that microorganisms can easily attach and grow, it can be effectively used for biological treatment, which is a main process of organic decomposition. In order to widen the specific surface area of the oyster shell, the oyster shell is mainly used in powder form.

In the present invention, the content of the oyster shell is preferably 0.01 to 10 parts by weight, more preferably 0.05 to 5 parts by weight, in the first agent. When the content of the oyster shell is less than 0.01, the adsorption and flocculation efficiency of the rust / red tide organisms decreases, and when the content of the oyster shell exceeds 10 parts by weight, the difference in effect is not greater than that in the case of using 10 parts by weight.

Charcoal is made of porous, deodorizing effect, absorbs various viruses and bacteria, has excellent sterilizing power, absorbs various heavy metals, does not oxidize after thousands of years, has a negative charge, and is highly regarded as a safe natural preservative.

In addition, charcoal cleanses contaminated water, enhances the activity of sea microorganisms, prevents decay when settled in various pollutants and water, and becomes a food for meat as it becomes manure.

Coconut charcoal is a charcoal made from oil-coated coconut shells, dried in the sun, and baked at high temperatures.In Korea, coal charcoal made by compacting natural coconut charcoal and then compressing the charcoal powder is used. The internal cross-sectional area of about 1,200㎡ per 1g shows strong effect of natural adsorption, not only for deodorization but also for air purification.

In the present invention, the content of coconut char is suitably 0.01 to 10 parts by weight, and more preferably 0.1 to 5 parts by weight, in the second agent. When the content of charcoal is less than 0.01, the adsorption agglomeration efficiency or deodorization efficiency of rust / red tide organisms decreases, and when it is more than 10 parts by weight, it is not economically desirable.

Quick lime is made by heating limestone or dolomite to 1,000 ~ 1,200 ℃ to volatilize carbon dioxide.It is the main ingredient of calcium oxide (CaO), and when combined with moisture, it generates high heat and removes bad smell. . Because of its strong alkalinity, it quickly neutralizes low acidic soils with a pH below 3.5 ~ 5.0.

In the present invention, the content of quicklime is appropriately 0.01 to 10 parts by weight, more preferably 0.1 to 5 parts by weight in the above two agents. If the amount of quicklime is less than 0.01 parts by weight, the adsorption agglomeration efficiency or deodorization efficiency of the green / red tide organisms is lowered, and if it is more than 10 parts by weight, the useful substances in the stream may be easily lost and may not be used as nutrients.

In the present invention, (a) 1 ~ 10% (w / v) 100 parts by weight of brine, 0.01 to 10 parts by weight of ocher powder, 0.01 to 10 parts by weight of clay powder and 0.01 to 10 parts by weight of oyster shell powder are electrolyzed When the precipitate obtained by precipitation for 0.5 to 24 hours to 100 parts by weight, (b) 100 parts by weight of 1 to 10% (w / v) brine, 0.01 to 50 parts by weight of charcoal and 0.01 to 30 parts by weight of quicklime Next, the content of the supernatant obtained by precipitation for 0.5 to 24 hours is appropriately 10 to 500 parts by weight, more preferably 100 to 200 parts by weight. When the content of the supernatant is less than 10 parts by weight, the adsorption agglomeration efficiency or deodorization efficiency of the green / red tide organisms is lowered, and when the content of the supernatant is more than 500 parts by weight, the difference in effect is not greater than that by using 500 parts by weight.

In addition, in the present invention, (a) 1 to 10% (w / v) 100 parts by weight of brine, 0.01 to 10 parts by weight of ocher powder, 0.01 to 10 parts by weight of clay powder and 0.01 to 10 parts by weight of oyster shell powder are prepared. When the precipitate was obtained by decomposition and settled for 0.5 to 24 hours to 100 parts by weight, (c) 100 parts by weight of 1-10% (w / v) brine, 0.01 to 10 parts by weight of clay powder and 0.01 to 10 parts by weight of ocher powder. After stirring the part, the weight part of the supernatant obtained by precipitation for 0.5 to 24 hours is appropriately 10 to 500 parts by weight, more preferably 100 to 200 parts by weight. When the content of the supernatant is less than 10 parts by weight, the adsorption agglomeration efficiency or deodorization efficiency of the green / red tide organisms is lowered, and when the content of the supernatant is more than 500 parts by weight, the difference in effect is not greater than that by using 500 parts by weight.

According to another aspect of the present invention, (a) 100 parts by weight of 1 to 10% (w / v) brine in 1 L of green algae contaminated water, red algae contaminated water, mixed contaminated water of green algae and red algae, or odor-causing substances contaminated water, and ocher 0.01 ~ 10 parts by weight, 0.01-10 parts by weight of clay, and 0.01-10 parts by weight of oyster shell powder are electrolyzed and then precipitated for 0.5 to 24 hours, and then 1 to 10 g of precipitate is added and stirred for 0.1 to 24 hours to produce green algae and red tide. Or agglomerating malodor causing substances; And (b) stirring (i) 100 parts by weight of 1 to 10% (w / v) brine, 0.01 to 10 parts by weight of charcoal and 0.01 to 10 parts by weight of quicklime, followed by precipitation for 0.5 to 24 hours. 0.1 to 50 ml of supernatant and (ii) 100 parts by weight of 1-10% (w / v) brine, 0.01 to 10 parts by weight of clay powder and 0.01 to 10 parts by weight of ocher powder, followed by precipitation for 0.5 to 24 hours It relates to a water treatment method for removing the green alga, red tide or odor including the step of adding ~ 50ml, stirred for 0.1 to 24 hours and then precipitated.

In one embodiment of the present invention, when sediment or liquid water treatment agent is prepared by using brine, ocher powder, white clay powder, oyster shell powder, charcoal and quicklime, and treated with rust and red tide contaminated water and agglomerates, flocculation and precipitation This was confirmed to exhibit more than 95% rust, red tide or odor removal effect.

[Example]

Hereinafter, the present invention will be described in more detail with reference to Examples. It is to be understood by those skilled in the art that these embodiments are only for illustrating the present invention and that the scope of the present invention is not construed as being limited by these embodiments.

Example  1: For removing rust, red tide and / or odor Water treatment agent  Produce

In order to prepare a water treatment agent for removing rust, red tide and / or odor, salt water, loess powder, white clay powder, and oyster shell powder were mixed and electrolyzed for a predetermined time, and the precipitate passed through the mash (500mash) was used.

10 g of ocher powder, 10 g of white clay powder, and 5 g of oyster shell powder were mixed together with 1 L of 5% brine, and then electrolyzed for 5 minutes by transferring to an electrolysis tank having a current of 30 to 40 A at a voltage of 9.5 V DC. . The electrolyzed mixture was precipitated for about 1 hour, and the supernatant was discarded to obtain a precipitate. The precipitate was passed through a 500mash to obtain a final precipitate (first agent).

50 g of coconut charcoal and 30 g of quicklime were added together with 1 L of 5% brine, and then stirred for about 1 hour to obtain supernatant (second agent) except for a precipitate.

10 g of clay powder and 10 g of ocher powder were added together with 1 L of 5% brine, and the mixture was stirred and precipitated for about 1 hour, thereby obtaining supernatant (third agent) except for the precipitate.

Example  2: Confirm the rust and red tide relief effect

When 5 g of the first agent obtained in Example 1 was added to 1 L of rust / red tide contaminated water and stirred slowly, it was confirmed that a strong flocculation phenomenon occurred between the precipitate and the rust / red tide bioparticles, and thus the second agent obtained in Example 1 And 20 ml of a 1: 1 mixture of the third agent was added and stirred, and the flocculated aggregate gradually precipitated. After about 1 hour, it was confirmed that exhibiting more than 95% rust, red tide relief effect (Fig. 1, 2).

Example  3: Confirm the effect of removing odor

In order to confirm the odor removal effect of the water treatment agent obtained in Example 1, the water treatment agent of Example 1 was treated with the water treatment agent of Example 1 was subjected to the NH ₃ deodorization test was collected from the Ganwol lake in Seosan-si, Chungnam. Deodorization effect experiment was performed according to the test regulations of KICM-FIR-1085: 2006, the deodorization rate was calculated by the measured reduction rate of NH ₃ . In the same manner as in Example 2, 5 g of the first agent obtained in Example 1 was stirred in 1 L of contaminated water, and then 20 ml of a 1: 1 mixture of the second and third agents obtained in Example 1 was added and stirred. , It was observed that after 2 hours of treatment of the water treatment agent according to the present invention exhibits a deodorizing effect of more than 95%, it was confirmed that it has an excellent deodorizing function (Table 4).

NH ₃ deodorization test result Time (min) Blank Concentration (ppm) Sample concentration (ppm) Deodorization rate (%) Experimental Example 1 Experimental Example 2 Experimental Example 1 Experimental Example 2 0 200 200 200 0.0 0.0 30 195 30 30 84.6 84.6 60 191 25 21 86.9 89.0 90 187 12 10 93.6 94.7 120 183 8 6 97.6 98.1

While the present invention has been particularly shown and described with reference to specific embodiments thereof, those skilled in the art will appreciate that such specific embodiments are merely preferred embodiments and that the scope of the present invention is not limited thereto will be. Accordingly, the actual scope of the present invention will be defined by the appended claims and their equivalents.

Claims (4)

Water treatment agents for removing algae, red algae or odors, including:
(a) 1 to 10% (w / v) 100 parts by weight of brine, 0.01 to 10 parts by weight of ocher powder, 0.01 to 10 parts by weight of clay powder and 0.01 to 10 parts by weight of oyster shell powder are electrolyzed and then 0.5 to 24 100 parts by weight of precipitate obtained by time precipitation (part 1);
(b) 10 to 500 parts by weight of supernatant obtained by stirring 100 parts by weight of 1 to 10% (w / v) brine, 0.01 to 50 parts by weight of charcoal and 0.01 to 30 parts by weight of quicklime, followed by precipitation for 0.5 to 24 hours. ); And
(c) 10 to 500 parts by weight of supernatant obtained by stirring 100 parts by weight of 1 to 10% (w / v) brine, 0.01 to 10 parts by weight of clay powder and 0.01 to 10 parts by weight of ocher powder, followed by precipitation for 0.5 to 24 hours ( 3).
The water treatment agent for removing green algae, red tide, or odor according to claim 1, wherein the precipitate in step (a) is passed through a mash of 400 to 500 mesh.
The water treatment agent of claim 1, wherein the char of step (b) is coconut char.
Water treatment to remove green algae, red algae or odors, including the following steps:
(a) 100 parts by weight of 1 to 10% (w / v) brine, 0.01 to 10 parts by weight of clay, 0.01 to 10 parts by weight of green algae contaminated water, red algae contaminated water, mixed contaminated water of green algae and red algae or odor causing substances ~ 10 parts by weight and 0.01-10 parts by weight of a mixture of oyster shell powder are electrolyzed and then precipitated for 0.5 to 24 hours, and then 1 to 10 g of precipitate is added and stirred for 0.1 to 24 hours to agglomerate green algae, red tide or odor causing substances. Making a step; And
(b) the supernatant water obtained by stirring (i) 100 parts by weight of 1 to 10% (w / v) brine, 0.01 to 10 parts by weight of charcoal and 0.01 to 10 parts by weight of quicklime, followed by precipitation for 0.5 to 24 hours. 0.1 to 50 ml and (ii) 100 parts by weight of 1 to 10% (w / v) brine, 0.01 to 10 parts by weight of clay powder and 0.01 to 10 parts by weight of ocher powder, followed by precipitation for 0.5 to 24 hours Add 50 ml, stir for 0.1-24 hours and then precipitate.

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