WO2007114528A1 - Appareil et procédé de lutte contre la prolifération d'algues - Google Patents

Appareil et procédé de lutte contre la prolifération d'algues Download PDF

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Publication number
WO2007114528A1
WO2007114528A1 PCT/KR2006/001181 KR2006001181W WO2007114528A1 WO 2007114528 A1 WO2007114528 A1 WO 2007114528A1 KR 2006001181 W KR2006001181 W KR 2006001181W WO 2007114528 A1 WO2007114528 A1 WO 2007114528A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
biomaterial
treatment tank
algal
porous material
Prior art date
Application number
PCT/KR2006/001181
Other languages
English (en)
Inventor
Hee-Mock Oh
Min-Soo Kim
Hee-Sik Kim
Chi-Yong Ahn
Jae-Won Lee
Seung-Hyun Joung
Kwang-Yong Youn
Original Assignee
Korea Research Institute Of Bioscience And Biotechnology
Ilsan Construction
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Korea Research Institute Of Bioscience And Biotechnology, Ilsan Construction filed Critical Korea Research Institute Of Bioscience And Biotechnology
Priority to PCT/KR2006/001181 priority Critical patent/WO2007114528A1/fr
Publication of WO2007114528A1 publication Critical patent/WO2007114528A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/006—Water distributors either inside a treatment tank or directing the water to several treatment tanks; Water treatment plants incorporating these distributors, with or without chemical or biological tanks
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/34—Treatment of water, waste water, or sewage with mechanical oscillations
    • C02F1/36—Treatment of water, waste water, or sewage with mechanical oscillations ultrasonic vibrations
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
    • C02F3/327—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae characterised by animals and plants
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/105—Phosphorus compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/20—Heavy metals or heavy metal compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/02—Fluid flow conditions
    • C02F2301/024—Turbulent
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/30—Wastewater or sewage treatment systems using renewable energies
    • Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy

Definitions

  • the present invention is an apparatus for algal bloom control that uses a combination of treatments including ultrasonication, biological and chemical materials.
  • the apparatus contains an ultrasonicator for ultrasonic treatment, water pumps inducing circulation of water, a porous material treatment tank containing algal bloom inhibiting chemical materials, and a biomaterial treatment tank that adds biological material to water.
  • the present invention uses an economical ultrasonication method for inhibiting blue green algae selectively without creating secondary pollution.
  • the present invention can be used to break up a stagnating body of water that is creating the conditions for an algal bloom. Therefore, by using the present invention properly, algal blooms in lakes, ponds, reservoirs or intake towers could be controlled effectively.
  • Hypolimnetic aeration artificial circulation, sediment removal, algicide addition and phosphorus inactivation are typical representative technologies.
  • Hypolimnetic aeration is the most general method, in which the air delivered to deep water inhibits anaerobic storage and as a result inhibits elution of phosphorus from the soil.
  • Artificial circulation destroys stratification in which cyanobacteria propagate vigorously.
  • hypolimnetic aeration and artificial circulation are not economical. In this country, these two methods are commonly used, but are not very effective.
  • the present inventors found that ultrasonic waves are effective against algal breeding, especially cyanobacteria, and developed a number of algal removing materials.
  • the present inventors then patented the finding that ultra- sonication has an excellent inhibiting effect on algae, especially cyanobacteria [registered patent publication No.0443266], found that the ultrasonication treatment is more effective during a certain time period of the day and patented an effective algal controller [registered patent publication No.0504452], and patented an improved algal growth inhibiting apparatus [registered patent publication No.0528599].
  • the inventors developed a combined apparatus consisting of an ultra- sonicator, a biomaterial, and a chemical material, and the three elements can be used in various combinations depending on the water quality.
  • the inventors applied the apparatus on a large scale in the field for five months and demonstrated it to be effective.
  • the inventors produced a combination of algal controlling biomaterial- and porous material-charged tanks, water pumps inducing circulation of water, at least one ultrasonicator, and transducers.
  • the inventors demonstrated that the combined apparatus was effective in algal bloom control in a 12,000-ton scale pond.
  • the combined apparatus for algal bloom control contains one or more water pumps (10) operating in the region of water in which the algae has propagated heavily and discharging in a particular direction through an outlet (3); ultrasonicator and transducers (6) radiating ultrasonic waves into the water sucked in by the water pump; biomaterial treatment tank (4); porous material treatment tank (5) charged with porous silicate material; one or more supplementary transducers (6); a frame (7) to fix the water pump (10), the transducer, the biomaterial treatment tank and porous material treatment tank in the water; control means (12) to control the operation of the water pump, the ultrasonicator, the biomaterial treatment tank, the porous material treatment tank; and a power supply (11).
  • the objectives of the present invention are to: treat a large amount of water quickly through the combination of the ultrasonicator and water pump; maximize the algal growth inhibition effect with the minimum number of ultrasonicators; provide an apparatus and a method that inhibits secondary pollution, using ultrasonication to control cyanobacteria selectively; and break up the stagnant body of water suitable for cyanobacterial growth.
  • the combined apparatus of the present invention represents effects as follow.
  • FIG. 1 shows the whole schematic diagram of the apparatus of the present invention.
  • Fig. 2 is a diagram that shows water flow in the biomaterial treatment tank and porous material treatment tank.
  • Fig. 3 shows the ultrasonic intensity in the body of water when ultrasonic waves are generated.
  • Fig. 4 shows the growth inhibition rate of Microcystis sp. according to various concentrations of rice straw extract as a biomaterial.
  • Fig. 5 shows the growth inhibition rate of Microcystis sp. according to various processing methods of rice straw extract as a biomaterial.
  • Fig. 6 shows irradiance (A) and rainfall (B) in the field while the apparatus of the present invention is operated.
  • Fig. 7 shows total nitrogen (TN, Fig. 7-A) and total dissolved nitrogen (TDN, Fig.
  • Fig. 8 shows total phosphorus (TP, Fig. 8-A) and total dissolved phosphorus (TDP,
  • FIG. 8-B in the field during operation of the apparatus of the present invention.
  • Fig. 9 shows the algal controlling effect in the field during operation of the apparatus of the present invention.
  • [50] ⁇ Description of sign about major parts of drawings>
  • the water to be treated is sucked into the frame, and after treatment, discharged in a particular direction using the water pump (10) placed in the two side ends of the frame (7).
  • the water pump placed in the two side ends of the frame (7).
  • the biomaterial treatment tank can store the biomaterial and discharge it out of the frame through the biomaterial discharge valve toward the body of water.
  • the inner space of the porous material treatment tank is separated by many partitions, and the separated rooms are connected with passages through the upper and lower ends in turn. As shown in Fig.
  • At least one transducer (6) connected with the ultrasonicator, is installed at the lower end of the biomaterial treatment tank and/or porous material treatment tank to radiate ultrasonic waves into the water sucked into the frame by the water pump (10).
  • the ultrasonicator (not shown in the drawings) may be placed near the power supply or with the control means, or with a transducer.
  • the transducers installed inside of the frame (7) at least one supplementary transducer is installed in the water far from the frame.
  • the supplementary transducers (6') out of the frame are multi-angular pillar or circular pillar type transducers, which can radiate ultrasonic waves in many directions for effective ultrasonic treatment, while the transducers in the frame are flat types.
  • the control means (12) outputs controlling signals to automatically control on/off, number of times of operation, and operating time of the water pump and ultrasonicator.
  • the control means controls the input of biomaterial into the biomaterial treatment tank, according to time and the concentration of phosphorus.
  • the control means controls the combination of the ultrasonication process, biomaterial treatment process and porous material treatment process, or the processing sequence according to the degree of pollution, season, temperature of the water, etc.
  • the present invention contains at least one water pump, at least one ultrasonicator, at least one porous material treatment tank, at least one biomaterial treatment tank, power supply and control means.
  • the water pump sucked in water from the region in which algae propagated heavily, and discharged the water upward through the outlet (3).
  • the water pump was installed to the two-sided end of the frame.
  • Two biomaterial treatment tanks (4) at the next water pump stored the biomaterial from biomaterial supplying means (1) or mixed the biomaterial with water sucked in by the water pump to treat the water.
  • the biomaterial could be mixed with water in the biomaterial treatment tank, and/or could be mixed outside of the tank by the biomaterial output valve.
  • Biomaterials in the present invention designate allelochemicals.
  • Allelopathy is a reaction in which a certain compound emitted from a plant exercises influence on the growth of another plant.
  • Well-known allelochemicals of food crops, medicinal crops, wild plants, and aquatic plants are extracts of rice straw, wheat straw, barley straw, leguminous plants, alfalfa, Cnidium officinale, ginger, broadleaf trees such as oak trees, and needle-leaf trees.
  • Known allelochemical compounds of plants include, terpenoids, steroids, phenols, coumarin, flavenoids, alkaloids and tannin, which inhibit germination, growth, respiration, photosynthesis, nutrient absorption or hormone synthesis.
  • the present inventors patented rice straw extract, extracted by a polar solvent, as a cyanobacteria growth-inhibiting compound.
  • one or more biomaterials selected from a group consisting of extracts of rice straw, wheat straw, barley straw, broadleaf and needle-leaf could be used to inhibit algal growth.
  • cultured media for environmental microorganisms for water treatment such as Bacillus subtillis, etc. could be applied as a biomaterial.
  • the silicate porous material is potassium silicate compound synthesized from plaster, quicklime and steel mill slag.
  • the major ingredients are SiO and CaO, with lesser amounts of Al, Fe, Mg and K.
  • the pH is about 8-9, the specific gravity is 0.35-0.45, and the specific surface area is about 50D/g.
  • the porous silicate has copious numbers of fine pores to adsorb phosphorus contained in water.
  • At least one transducer (6) connected with the ultrasonicator was installed at the lower end of the biomaterial treatment tank and/or porous material treatment tank to radiate ultrasonic waves into the water sucked into the frame by the water pump (10).
  • the ultrasonicator (not shown in the drawings) could be placed near the power supply or with the control means, or with a transducer.
  • At least one supplementary transducer may be installed in the water far from the frame.
  • the supplementary transducer (6') out of the frame can be a flat type like the transducer in the frame, or a pillar type transducer that can radiate ultrasonic waves in many directions.
  • the control means (12) outputs controlling signals to automatically control on/off, number of times of operation, and operating time of the water pump and ultrasonicator.
  • the control means controls the input of biomaterial into the biomaterial treatment tank according to the time and the concentration of phosphorus.
  • the control means controls the combination of the ultrasonication process, biomaterial treatment process and porous material treatment process according to the degree of pollution, season, temperature of the water, etc.
  • the biomaterial used in an example of the present invention was extracted from rice straw.
  • 7kg of rice straw and 501 of water were mixed and naturally extracted for 3 months in a large vessel.
  • the extract of rice straw was filtered with GF/C filtering paper (Whatman) in order to remove solid matter, and then liquid biomaterial was acquired.
  • GF/C filtering paper Whatman
  • To measure the dry weight of liquid biomaterial 1OD of liquid biomaterial was put into a foil dish, and was then dried in a dryer at 8O 0 C. In the drying process the weight was measured at intervals, and when the weight was no longer changing, the dried weight of the extract was measured.
  • the biomaterial prepared was used for algal growth inhibition in the present invention.
  • Example 2 Manufacture of an apparatus for algal growth inhibition
  • the apparatus for algal growth inhibition contains an ultrasonicator as a major element, and the ultrasonicator has a frequency of 22 kHz and maximum power of 630W.
  • the ultrasonicator has a frequency of 22 kHz and maximum power of 630W.
  • four transducers with thickness of 55mm and diameter of 25cm were used in the apparatus.
  • the apparatus with a timer, could change the treatment time periods, and the apparatus was produced in order to control power intensity.
  • three treatment tanks were produced for packing or storage of porous material and biomaterial.
  • Microcystis sp. was treated with the biomaterial prepared in Example 1 in concentration of 1, 10, 50, and 100ppm(w/v) respectively, and compared to a control. Growth inhibition of Microcystis sp. was detected. Microcystis sp. was cultured at 3O 0 C, with lOOrpm stirring, for 7days under continuous light. The changes of cell concentration were measured using fluorescence.
  • PTFE Whatman, pore size 0.2D
  • thevMicrocystis sp. was treated with lppm and lOppm of the filtered extract.
  • autoclaved biomaterial (B) inhibited bacterial growth to a degree similar to the non-treated control (A) at 1 and lOppm.
  • the cyanobacteria inhibition substance in the biomaterial is heat-resistant.
  • the term "Humic substance" is synonymous with the biomaterial in the present invention.
  • Membrane-filtered biomaterial (C) was less effective than the control. A portion of the cyanobacteria inhibition substance might be removed in the membrane filtering process. From these results, the cyanobacteria inhibition substance in the biomaterial is believed to be a heat-resistant, low molecular weight substance.
  • Ponds A and B in Cheonan city, Chungnam province, Korea, were chosen as experimental fields. Pond A, the control, was not treated, and pond B was treated using the apparatus of the present invention. The two ponds were close together, and the structures were same. The widest point was approximately 100m, the narrowest was about 50m, average depth was about 2.5m, and the deepest point was 4m. The ponds each have 12,000ton water volume. The ponds have no influx and no water treatment system, and as a result, algal blooms occur every year. The field experiment took place from June 1 st , 2005 to October 7 , 2005, and water samples were collected and analyzed regularly twice a week.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Biotechnology (AREA)
  • Botany (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • Physical Water Treatments (AREA)

Abstract

La présente invention concerne un appareil et un procédé de lutte contre la prolifération d'algues faisant appel à un traitement combinatoire. Cet appareil se compose en particulier d'un dispositif d'ultrasonication, de pompes à eau, d'un réservoir de traitement contenant un matériau poreux et d'un réservoir de traitement contenant un biomatériau.
PCT/KR2006/001181 2006-03-31 2006-03-31 Appareil et procédé de lutte contre la prolifération d'algues WO2007114528A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/KR2006/001181 WO2007114528A1 (fr) 2006-03-31 2006-03-31 Appareil et procédé de lutte contre la prolifération d'algues

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/KR2006/001181 WO2007114528A1 (fr) 2006-03-31 2006-03-31 Appareil et procédé de lutte contre la prolifération d'algues

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WO2007114528A1 true WO2007114528A1 (fr) 2007-10-11

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101780997A (zh) * 2010-04-01 2010-07-21 哈尔滨工业大学 利用超声波抑制藻类生长的设备
WO2013115732A2 (fr) 2012-02-01 2013-08-08 Envit, Environmental Technologies And Engineering Ltd. Procédé et dispositif pour lutter contre l'efflorescence de cyanobactéries nuisibles
US8668827B2 (en) 2012-07-12 2014-03-11 Heliae Development, Llc Rectangular channel electro-acoustic aggregation device
US8673154B2 (en) 2012-07-12 2014-03-18 Heliae Development, Llc Tunable electrical field for aggregating microorganisms
US8702991B2 (en) 2012-07-12 2014-04-22 Heliae Development, Llc Electrical microorganism aggregation methods
US8709258B2 (en) 2012-07-12 2014-04-29 Heliae Development, Llc Patterned electrical pulse microorganism aggregation
US8709250B2 (en) 2012-07-12 2014-04-29 Heliae Development, Llc Tubular electro-acoustic aggregation device
US8772004B2 (en) 2009-06-25 2014-07-08 Old Dominion University Research Foundation System and method for high-voltage pulse assisted aggregation of algae
CN107980825A (zh) * 2017-11-28 2018-05-04 安徽师范大学 来源于植物的抑藻剂及其制备方法
CN111850079A (zh) * 2020-07-09 2020-10-30 河南护理职业学院 一种微生物法制备复合抑藻剂的方法
CN113180012A (zh) * 2021-05-26 2021-07-30 中国水产科学研究院渔业机械仪器研究所 一种利用稻草控制蓝藻水华的方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06218360A (ja) * 1992-06-22 1994-08-09 Honda Electron Co Ltd 超音波炭酸ガス脱気方法及び装置
JPH11156353A (ja) * 1997-11-21 1999-06-15 Haruyoshi Yamazaki アオコの簡易沈澱法
KR20050037229A (ko) * 2003-10-17 2005-04-21 클린월드하이테크(주) 녹조발생 억제용 복합소재
KR100528599B1 (ko) * 2003-09-26 2005-11-15 클린월드하이테크(주) 초음파를 이용한 조류 생장 억제장치

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06218360A (ja) * 1992-06-22 1994-08-09 Honda Electron Co Ltd 超音波炭酸ガス脱気方法及び装置
JPH11156353A (ja) * 1997-11-21 1999-06-15 Haruyoshi Yamazaki アオコの簡易沈澱法
KR100528599B1 (ko) * 2003-09-26 2005-11-15 클린월드하이테크(주) 초음파를 이용한 조류 생장 억제장치
KR20050037229A (ko) * 2003-10-17 2005-04-21 클린월드하이테크(주) 녹조발생 억제용 복합소재

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8772004B2 (en) 2009-06-25 2014-07-08 Old Dominion University Research Foundation System and method for high-voltage pulse assisted aggregation of algae
CN101780997A (zh) * 2010-04-01 2010-07-21 哈尔滨工业大学 利用超声波抑制藻类生长的设备
WO2013115732A2 (fr) 2012-02-01 2013-08-08 Envit, Environmental Technologies And Engineering Ltd. Procédé et dispositif pour lutter contre l'efflorescence de cyanobactéries nuisibles
US8709250B2 (en) 2012-07-12 2014-04-29 Heliae Development, Llc Tubular electro-acoustic aggregation device
US8702991B2 (en) 2012-07-12 2014-04-22 Heliae Development, Llc Electrical microorganism aggregation methods
US8709258B2 (en) 2012-07-12 2014-04-29 Heliae Development, Llc Patterned electrical pulse microorganism aggregation
US8673154B2 (en) 2012-07-12 2014-03-18 Heliae Development, Llc Tunable electrical field for aggregating microorganisms
US8668827B2 (en) 2012-07-12 2014-03-11 Heliae Development, Llc Rectangular channel electro-acoustic aggregation device
CN107980825A (zh) * 2017-11-28 2018-05-04 安徽师范大学 来源于植物的抑藻剂及其制备方法
CN107980825B (zh) * 2017-11-28 2020-10-16 安徽师范大学 来源于植物的抑藻剂及其制备方法
CN111850079A (zh) * 2020-07-09 2020-10-30 河南护理职业学院 一种微生物法制备复合抑藻剂的方法
CN113180012A (zh) * 2021-05-26 2021-07-30 中国水产科学研究院渔业机械仪器研究所 一种利用稻草控制蓝藻水华的方法
CN113180012B (zh) * 2021-05-26 2022-09-06 中国水产科学研究院渔业机械仪器研究所 一种利用稻草控制蓝藻水华的方法

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