JP2007326090A - Water purifying and activating method in closed water area putting natural material to practical use and construction method therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water purifying and activating method for purifying and improving the water quality caused by phenomenon that the abnormality of pH occurs in a closed water area with an excess of unstable nitrogen component, increase in the amount of phosphorus, non-transparency of water by eutrophication, and the growth of a malodor sludge, and to provide a construction method therefor. <P>SOLUTION: A water activating material is constituted so that the pH adjustment, deodorization or sterilization of water is performed by wood vinegar, flocculation and sedimentation is performed using diatomaceous soil, the aeration, ion exchange and membrane treatment of sludge is performed by zeolite and water or soil is purified only using a natural material. The water activating material is composed of wood vinegar, zeolite, vegetable broken pieces and microorganisms. The water activating material is scattered over the closed water area to perform pH adjustment, flocculation and sedimentation, aeration, ion exchange, chlorine removal, oxidative catalytic reaction, the decomposition of a malodorous substance by oxidative reaction, the decomposition of putrefaction odor of protein, excrement of an animal, etc., adsorptive decomposition of nitrogen, phosphoric acid, etc. the adsorption of a harmful substance such as outflow oil or the like, the adsorption and decomposition of residual agricultural chemicals or heavy metals and the development of microbial action due to the repairing of a living environment of effective microorganisms due to antibacterial action and pH adjustment. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an environmental restoration such as eutrophication and sludge reduction related to the deterioration of water quality in a closed water area using natural materials, a method for purifying and improving water quality, and a method for the same.

Water pollution is an environmental problem in closed water areas such as lakes, swamps, ponds, moats, reservoirs, and bays.
Water quality due to the flow of domestic wastewater (nitrogen such as human waste, bath water, food waste, detergent, etc.), agricultural wastewater (fertilizer, etc.), industrial wastewater (chemical substances), and the surrounding environment (oil leakage from the car) Deterioration is progressing. There are problems with the landscape, odor, fish and plant habitat. Moreover, water sewage and water purification of heavy metals were released into rivers, causing problems with natural pollution, environmental destruction due to secondary products, water pollution, and foul odors.

  In recent years, sewerage has become widespread in areas other than urban areas, and although salvation can be expected from the viewpoint of inflow, the introduction to the water area is currently several to ten years ahead.

  Closed water areas have not achieved environmental standards significantly compared to other water areas (rivers, seas).

Although equipment and equipment have been introduced as countermeasures, sludge removal has been repeated and measures for treated water with sufficient oxygen dissolution have not been achieved.
As for water purification, many proposals have been made and put to practical use, but it required capital investment, great expense and human power, but it caused pollution to the ecosystem.

  The production of the cleaning agent is costly and chemical substances are added.

  Ecosystem destruction by dredging work.

  The coating treatment currently being performed places a burden on the amount of water stored, from 30 cm to 100 cm.

  Contamination mechanisms in closed water are: eutrophication due to inflow pollution, growth of plant microorganisms, growth of animal microorganisms, consumption of dissolved oxygen in water, sedimentation of dead animal microorganisms, floating of dead plant microorganisms, at the bottom A vicious cycle occurs with bacterial decomposition, consumption of dissolved oxygen at the bottom, sludge formation at the bottom, elution of phosphoric acid and nitrogen, and eutrophication of the entire water area.

  Due to the oxidation reaction, nitrogen is transferred to ammonium ions, ammonium ions to nitrite ions, and nitrite ions to nitrate ions, and the opposite occurs in the reduction reaction. At that time, in an unstable state of eutrophication, ammonium ions cause toxic ammonia by water alkalinization, and also cause large consumption of oxygen by reciprocating redox to toxic nitrous acid.

  An object of the present invention is to drastically improve opacification, malodor, and sludge generation due to eutrophication due to abnormal pH, increased excessive nitrogen content, and increased phosphorus in closed waters.

Since natural materials are used, it is possible to provide them at low cost and to improve them reliably.
Furthermore, it aims at providing a favorable construction method at low cost.

  An object of the present invention is to provide a combination of the function and performance of diatomaceous earth, zeolite, and plant fragments and the utility of pyroligneous acid and microorganisms as an environmental improvement material.

  The present invention can be improved for a closed water area having individual problems by adjusting the combination, work procedure, and quantity. (Contamination improvement, water quality of endangered species protection, soil improvement, etc.)

For the improvement method of water areas where weakly acidic components such as carbonic acid are consumed for photosynthesis of eutrophication plants and phytoplankton, a 2000 times solution of wood vinegar is used. In the amount to become. The pH can be adjusted to 7 ± 1, eliminating the generation of ammonia. In water that has been alkaline for a long period of time, a large amount of microorganisms and compounds corresponding to alkalinity are generated. In addition, deodorizing and sterilizing effects are obtained by the components of the wood vinegar solution. The coloring reaction has an effect of assisting the coagulating sedimentation effect of diatomaceous earth.
Depending on the pH value, it can be lowered only with diatomaceous earth.

In order to increase the transparency by treating microbial carcasses and compounds and underwater dust (SS), diatomaceous earth 2μ powder is sprayed on the surface of 1 kg of water per 1 ton of water. It becomes transparent in 3 to 6 hours due to the coagulation precipitation effect utilizing a superporous structure, and completely settles in 12 hours. Sewage transparency of 10 cm or less is the same transparency as tap water.
Moreover, the bottom sludge can be coated with diatomaceous earth, and the porous soil with good microbial degradation can be given to reduce sludge.

  In order to increase the amount of dissolved oxygen and perform ion exchange, 2 kg of zeolite 1 to 5 mm is introduced per 1 ton of water and aerated. Microbubbles (microbubbles / mosquitoes) are generated from the porous material to adsorb and react with contaminants. Ion exchange to purify water quality. In addition, the bottom sludge can be coated with zeolite, and the porous soil with good acceleration of microbial degradation can be provided to reduce sludge.

To prevent the inflow of pollutants to the inflow port, place zeolite 5-15mm in an agricultural net and tighten it in the drain. Perform filtration effect, reaction, ion exchange, oxygen dissolution, pH adjustment. An example is shown in FIG.
After being used for a certain period, it can be decomposed and reused by the method of [0020].

  As a water quality active material and an auxiliary improving material, one or both of diatomaceous earth and zeolite is immersed in a wood vinegar solution for 12 hours or more and dried to impregnate the components of the wood vinegar solution and become a purification material that combines excellent actions.

  As a water quality active material and auxiliary improvement material, aerobic and anaerobic soil bacteria, lactic acid bacteria, intermediate bacteria, photosynthetic bacteria, and other effective fungi are cultured on a porous plant structure, and one or both of diatomaceous earth and zeolite And the mixture is cultured for about one month at a water content of 68% at a temperature of 20 ° C. to 40 ° C., and when the culture proceeds, the water content is reduced to 30% or less to provide a purification material in which microorganisms are combined in the porous material.

  By impregnating one or both of diatomaceous earth and zeolite for one month with an aqueous solution in which effective fungi are cultured as a water quality activator and auxiliary improving material, a purification material in which microorganisms are combined in a porous material is obtained.

  [0019] [0020] [0020] [0021] Concentration of wood vinegar, microorganism selection, diatomaceous earth, zeolite size, amount, blending ratio, procedure is a closed water area having individual problems such as ecosystem and surrounding environment It is easily obtained by performing sample pattern verification according to the above.

  The auxiliary purification material of the above [0019] [0020] [0021] is used for adjustment spraying during or after the process. In addition, because of its versatility, it is possible to perform water quality improvement at low cost without using pattern verification if it is applied to a small amount of stored water.

  As a result of experiments conducted on the water quality of the experimental pond according to the procedure of this construction method [0015] [0016] [0017], this construction method showed an immediate effect and showed a continuous effect by promoting decomposition. Shows the safety and certainty of the construction method. The experimental results are shown in FIG.

  The pH was stable in the neutral range.

  Transparency is not different from tap water and shows no further improvement.

  Although COD showed an increase in numerical values during the experiment, it was due to the fact that the components of this material were dissolved in water due to other improvements and surrounding conditions. Stable by ecosystem cycle.

  Residual chlorine was eliminated.

  It can be seen from the results of the experiment that the nitrogen body smoothly migrated to nitrate ions incorporated into the plant.

  It can be seen that oxygen dissolution is increased because the nitric acid value is stable.

  Improved eutrophication is seen due to the decrease in phosphate.

  The effect on the amount of water stored by the coating effect during this construction method experiment is as small as 1 to 3 cm, and sludge reduction is observed over time.

  Due to the characteristics of natural resources, a unique action was discovered. Ultrafine and ultraporous natural materials adsorb and decompose residual pesticides and heavy metals, remove chlorine, cause oxidation catalytic reactions, and oxidatively decompose odorous substances, thereby oxidizing and decomposing odorous substances that react. Decomposition of protein rotten odor, animal excrement, etc. Adsorbs and decomposes residual pesticides such as Chisso and Rinsan, adsorbs harmful substances such as oil loss, bacteriostatic action, and adjusts the acidity to adjust the habitat of effective microorganisms and exerts excellent effects. Prevents the growth of bacteria that are secondary sources of odors and has a deodorizing effect. Furthermore, removal of ammonia and nitrogen. Adsorbs and removes heavy metal ions and softens hard water. There is also adsorption of ammonia gas, and oxygen and nitrogen are separated as gas bodies. Deodorized by adsorption of ammonia and nitrogen.

  Due to the useful characteristics of natural materials such as wood vinegar, diatomaceous earth, zeolite, and plant fragments, and the synergistic effect of microorganisms adsorbed and retained in the pores, we were able to obtain an unprecedented environmental improvement material.

  By impregnating the porous body pores with the wood vinegar liquid, the wood vinegar liquid components are gradually diffused by the mutual circulation action of the pores, and there is an effect of deodorization, water purification and anti-corruption.

  Furthermore, it was discovered that a sustainable effect can be obtained as an environmental improvement material.

  Useful microorganisms adhere to, adhere to, plant, and permeate the porous material to decompose sludge organic matter and create an environment that is easy to cycle through the ecosystem.

  The sludge decomposition and water purification agent according to the present invention relates to an environmental material characterized by improved water quality and sludge which is excellent in safety and economy, low in cost and excellent in practical use.

  The purification material of the present invention is an environmental purification material that absorbs and decomposes sludge and water pollution, and it is a water quality purification material that has low maintenance costs because it is free from environmental pollution and the microorganisms in the water depth, water area, swamp, and lake are not washed away. .

  There is a water purification effect by microbial action for purification of substances such as nitrogen and phosphorus and water purification that are the cause of pollution. After use, it is reduced as a soil conditioner and promotes a resource recycling society.

  Diatomaceous earth is diatomaceous earth produced from Kitaakita City, Akita Prefecture. Zeolite is preferably a mineral produced from Futatsui, Noshiro City, Akita Prefecture, and calcined into a molybdenum zeolite structure. The composition analysis result of the diatomaceous earth is shown in [FIG. 3], and the composition analysis result of the zeolite is shown in [FIG. 4]. For wood vinegar, use Kitaakita City local products, analyze it by the method of the Japan Wood Bamboo Vinegar Association, and use it with the quality specified in the plan for wood vinegar, disinfecting from the effects including phenols, Effective for deodorization, deodorization, antibacterial effect, etc. (For wood vinegar, use a certified product of the Japan Wood Bamboo Vinegar Association)

  A purification method that quickly adjusts pH with wood vinegar, coagulates and precipitates with diatomaceous earth, aerated and ion-exchanged with zeolite, and uses only natural materials to purify water and soil with compositional effects and film effects.

  When diatomaceous earth is sprayed from the surface of the water, the water content should be easy to coagulate and settle.

  By spraying from the surface of the water, sewage and harmful substances such as ammonia, hydrogen sulfide, sulfur compounds, nitric acid and nitrous acid are removed by this water purification material by stabilization of water quality and ion exchange action.

  The water purification activity method and purification material of the present invention are based on natural porous materials and are harmless.

  Since the water purification material according to the present invention decomposes sludge by a bio-purification system, the sludge is reduced and decomposed by biotechnology based on the decomposition action of organic substances of microorganisms by spraying it on a contaminated pond and swamp.

  Protect by improving the environment to suit endangered species.

It is an Example of the purification | cleaning material installation to an inflow port. Results of water purification experiments using this method. It is a composition analysis table | surface of diatomaceous earth. 3 is a composition analysis table of zeolite.

Claims (3)

  Water quality active material consisting of wood vinegar, diatomaceous earth, zeolite, plant debris, microbial natural materials.   Water quality active material consisting of a combination of wood vinegar, diatomaceous earth, zeolite, plant fragments, and microorganisms.   The water purification activity method and construction method using Claims 1 and 2.

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