WO2019150229A1 - Systèmes intégrés de traitement d'un plan d'eau et procédés associés - Google Patents

Systèmes intégrés de traitement d'un plan d'eau et procédés associés Download PDF

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Publication number
WO2019150229A1
WO2019150229A1 PCT/IB2019/050550 IB2019050550W WO2019150229A1 WO 2019150229 A1 WO2019150229 A1 WO 2019150229A1 IB 2019050550 W IB2019050550 W IB 2019050550W WO 2019150229 A1 WO2019150229 A1 WO 2019150229A1
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WO
WIPO (PCT)
Prior art keywords
water body
air
unit
thermo
module
Prior art date
Application number
PCT/IB2019/050550
Other languages
English (en)
Inventor
Krishnakumar Ranganathan PERNAMALLUR
Original Assignee
Pernamallur Krishnakumar Ranganathan
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 Pernamallur Krishnakumar Ranganathan filed Critical Pernamallur Krishnakumar Ranganathan
Publication of WO2019150229A1 publication Critical patent/WO2019150229A1/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
    • C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
    • 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
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F7/00—Aeration of stretches of water
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/02—Temperature
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/04—Disinfection
    • 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
    • Y02W10/33—Wastewater or sewage treatment systems using renewable energies using wind energy
    • 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 disclosure generally relates to the field of treatment of water bodies. More particularly, the present disclosure relates to integrated water body treatment systems for water bodies such as aquaculture ponds and methods thereof.
  • thermo-regulation can reduce the phosphorous and nitrogen content in the eutrophication zone. It can also control the algae growth apart from precipitating heavy metals and salts.
  • the present invention discloses energy efficient and economical integrated water body treatment systems for water bodies including aquaculture ponds and methods thereof.
  • the system comprises of an aeration module and a thermo-regulation module wherein thermo-regulated air and compressed air are combined and delivered to the bottom of the water body. This mode of combined delivery renders the whole water treatment process highly energy efficient.
  • the system further comprises of an ozonation module and/or a liquid dosing module.
  • the system disclosed in the present invention keeps the pond parameters such as dissolved oxygen content, temperature, pH, ammonia and nitrites at desirable level.
  • Exemplary embodiments of the present disclosure are directed towards energy efficient integrated water body treatment systems.
  • the system comprises of an aeration module that is configured for stabilizing dissolved oxygen content in a water body at a predetermined level and for circulating the water in the water body and a thermo-regulation module that is configured for maintaining the water body at a predetermined temperature.
  • the aeration module comprises of a high pressure air generation unit for generating compressed air, an air discharge unit comprising air diffusers/ air stations that are immersed within the water body and a compressed air pipeline unit connecting the air generation unit with the air discharge unit.
  • the thermo-regulation module comprises of an air conditioning unit being connected with a thermo-regulated air pipeline unit that joins the compressed air pipeline unit.
  • conditioned air produced thereof combines with the compressed air and gets discharged to the pond bottom through multiple air diffusers.
  • Other exemplary embodiments of the present subject matter are directed towards integrated water body treatment systems as given in the previous para that further comprise ozonation modules which are configured mainly for disinfecting the water body.
  • This module has an ozone generation unit that generates ozone which is transferred through the ozone pipeline unit to the compressed air pipeline unit.
  • liquid dosing modules which are configured for dispensing a predetermined amount of one or more of a bioculture composition, a biochemical composition and a chemical composition at a predetermined flow rate.
  • the liquid dosing module comprises of an injection skid unit being connected with a skid pipeline unit. The skid pipeline unit is immersed into the water body and the composition is delivered at the pond bottom.
  • thermo-regulated air produced by the air conditioning unit is delivered through the thermo-regulated air pipeline unit.
  • compressed air produced by the air generation unit is delivered through the compressed air pipeline unit.
  • a mixture of thermo-regulated air and compressed air is delivered at high pressure into the water body through the air discharge unit thereby treating the water body.
  • ozone is delivered into the compressed air pipeline unit and the mixture of ozone, compressed air and the thermo-regulated air are discharged into the water body.
  • the compositions are delivered via. the skid pipeline unit directly into the water body as and when required.
  • Fig. 1 is a simplistic representation of an integrated water body treatment system, in accordance with a non limiting exemplary embodiment of the present disclosure.
  • the system comprises of an aeration module that is configured for stabilizing dissolved oxygen content in a water body at a predetermined level and for circulating the water in the water body and a thermo-regulation module that is configured for maintaining the water body at a predetermined temperature.
  • the aeration module comprises of a high pressure air generation unit for generating compressed air, an air discharge unit comprising air diffusers/ air stations that are immersed within the water body and a compressed air pipeline unit connecting the air generation unit with the air discharge unit.
  • the thermo-regulation module comprises of an air conditioning unit being connected with a thermo- regulated air pipeline unit that joins the compressed air pipeline unit. The conditioned air produced thereof combines with the compressed air and gets discharged to the pond bottom through multiple air diffusers.
  • the dissolved oxygen content is stabilised from about 4 to about 15 mg per litre. In preferred embodiments, the dissolved oxygen content is stabilised at a level of about not less than 6 mg per litre.
  • the temperature of the conditioned air ranges from about 20 degrees C to about 35 degrees C. In preferred embodiments, the temperature of the conditioned air ranges from about 28 degrees C to about 32 degrees C.
  • the conditioned air can have any suitable temperature that is needed for effective and efficient water treatment and/or for optimum growth of aquaculture animals without limiting the scope of the present disclosure. Further, it should be noted that the thermo-regulation module can be switched off when the temperature of the water body is ideal for aquaculture/treatments without discharge of conditioned air or where thermoregulation does not have a role to play to achieve the desired purpose.
  • a water body treatment system as given in the previous para that further comprises an ozonation module is disclosed.
  • the ozonation module is configured mainly for disinfecting the water body.
  • This module has an ozone generation unit that generates ozone which is transferred through the ozone pipeline unit to the compressed air pipeline unit.
  • a water body treatment system as given in paras [0020] and [0021] that further comprises a liquid dosing module is disclosed.
  • the liquid dosing module is configured for dispensing a predetermined amount of one or more of a bioculture composition, a biochemical composition and a chemical composition at a predetermined flow rate.
  • the liquid dosing module comprises of an injection skid unit being connected with a skid pipeline unit. The skid pipeline unit is immersed into the water body and the composition is delivered at the pond bottom.
  • Exemplary water bodies that can be efficiently treated using this system are aquaculture systems, lakes, ponds, temple tanks, sewage or industrial effluents though other suitable water bodies can also be treated without limiting the scope of the present disclosure.
  • the different modules in the water treatment system can be customised to suit the treatment requirements and the nature and parameters of the water body.
  • FIG. 1 it depicts an integrated water body treatment system 100 for treating an aquaculture pond 101.
  • the air generation unit 110 of the aeration module 102 has two compressors 112 a and b for producing pressurized air from ambient air.
  • the number of the compressors could vary depending on the nature and parameters of the water body and treatment requirements. Any other means known in the art for producing pressurized air such as vane compressors, piston compressors, mink claw compressors or regenerative air blowers can be used in the present invention without limiting the scope of the present disclosure.
  • the power capacity of these compressors/blowers preferably ranges from half hp to lOhp but compressors/blowers with any suitable power capacity can be used depending on the treatment requirements and the nature and parameters of the water body without limiting the scope of the present disclosure.
  • the air discharge unit in this embodiment comprises of a plurality of micro bubble air diffusers 116 though any other means of discharging compressed air such as disc or tube type air diffusers or air stations can be used in the present invention without limiting the scope of the present disclosure.
  • the compressed air produced by the air generation unit 110 is delivered to the plurality of air diffusers 116 through the compressed air pipeline unit 114 that splits into a plurality of smaller pipes that join the plurality of air diffusers 116.
  • the air diffusers 116 are positioned at the bottom of the aquaculture pond 101 and the aeration module 102 thus oxygenates the pond from bottom to top unlike conventional surface aerators which oxygenate only the surface of the pond. This minimises sedimentation and anaerobic oxygenation of the organic waste thus maintaining good water and soil quality in the pond and ensures optimum growth of animals.
  • the air discharge unit can discharge compressed air anywhere in the water body including surface or bottom of the pond depending on the treatment requirements for efficient aeration without limiting the scope of the present disclosure.
  • thermo-regulation refers to heating, cooling, ventilation, cleaning, controlling humidity of the air and/or any other conditioning of air that is known in the art without limiting the scope of the present disclosure.
  • the air conditioning unit 118 of the thermo-regulation module 104 is a HVAC system that heats, cools and/or otherwise conditions the ambient air depending on the aquaculture requirements and the ambient air temperature. Any other means of conditioning the air such as HVAC vortex, vortex cooling or conventional air conditioners can be used without limiting the scope of the present disclosure.
  • the thermo-regulated air is delivered into the compressed air pipeline unit 114 via the thermo-regulated air pipeline unit 120.
  • the ozone generation unit 122 of the ozonation module 106 generates ozone that is transported through the ozone pipeline unit 124.
  • the ozone pipeline unit 124 in this particular embodiment merges with the thermo-regulated pipeline unit 120 and the ozone and the thermo- regulated air are delivered together into the compressed air pipeline unit 114.
  • the ozone pipeline unit can directly merge with the compressed air pipeline unit as well without limiting the scope of the present disclosure.
  • thermo-regulated air and/or ozone can be directly deliver the thermo-regulated air and the ozone into the water body via separate pipelines for each system, integrating delivery of thermo-regulated air and/or ozone with that of the compressed air is preferred since it prevents the need for a separate pressurized delivery system for thermo-regulated air and/or ozone thereby saving energy and cost. This also makes the system more compact without the need for extra pipelines.
  • the flow rate and duration of delivery of compressed air, thermo-regulated air and/or ozone can be customised and regulated as and when required according to treatment requirements and nature and parameters of the water body.
  • the injection skid unit 126 of the liquid dosing module 108 delivers a predetermined amount of one or more of bioculture compositions, biochemical compositions and chemical compositions into the water body through the skid pipeline unit 128 at a predetermined flow rate.
  • the amount and flow rate of the compositions can be customised according to treatment requirements and nature and parameters of the water body.
  • the injection skid unit 126 has a tank with a high pressure pump and sprayer.
  • the main pipeline splits into smaller pipes before dispensing the composition (not shown in the figure) into the water body.
  • the circulation of the water due to the aeration module 102 would ensure efficient mixing of the composition.
  • compositions can comprise one or more of microbes, enzymes, coenzymes, cofactors, chlorine or any other component known in the art that is used for treatment/bioremediation purposes in aquaculture, pond or lake restoration, sewage or industrial waste water treatment without limiting the scope of the present disclosure.
  • about 30 gms of microbial bioculture or 1 litre of chlorine are used per hectare of water body with about 5 feet depth and their flowrate through the liquid dosing module is set at about 15 lts per minute.
  • the high pressure air generation unit 110, the air conditioning unit and its pipeline 118 and 120, the ozone generation unit and its pipeline 122 and 124 and the injection skid unit 126 are completely enclosed by a housing 130 that minimizes sound transmission.
  • the skid pipeline unit 128 and the compressed air pipeline unit 114 are partly enclosed by the housing 130.
  • the housing 130 comprises a control panel 132 with regulators or actuators being configured for controlling the different modules.
  • the housing contains a plurality of fans 134 for facilitating circulation between air from within the housing 130 and the outside air thus preventing heat build-up within the housing 130.
  • the housing 130 is preferably mounted on the land surface near the water body though it can be positioned in any suitable location including being mounted on platforms over the water body without limiting the scope of the present disclosure.
  • the whole system is powered by electrical energy. Any alternative energy sources such as solar energy or wind energy can be used for powering the system without limiting the scope of the present disclosure.
  • the system further includes measuring devices to measure the one or more of the quality parameters of the water body such as temperature, pH and dissolved oxygen content etc.
  • a method for treating a water body begins with the step of providing an integrated water body treatment system as disclosed in para [0020]. This is followed by delivering the thermo-regulated air produced by the air conditioning unit through the thermo-regulated air pipeline unit. In the same manner, the compressed air produced by the air generation unit is delivered through the compressed air pipeline unit followed by delivering the mixture of thermo- regulated air and the compressed air at high pressure into the water body through the air discharge unit thereby treating the water body.
  • the ozone is delivered into the compressed air pipeline unit and the mixture of ozone, compressed air and the thermo-regulated air are discharged into the water body.
  • the compositions are delivered via. the skid pipeline unit directly into the water body as and when required.
  • thermo-regulation option When thermo-regulation option is used, 2 hp additional capacity is utilised
  • shrimp production was seen to increase by 30% as compared with paddle wheel aerated system. Further, the power consumption by the integrated system was about one twentieth of that of the paddle aerator which brings down the overall cost substantially.

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Farming Of Fish And Shellfish (AREA)

Abstract

Des exemples de modes de réalisation de la présente invention concernent des systèmes de traitement de plans d'eau intégrés efficaces et économes en énergie et des procédés associés. Dans un mode de réalisation particulier, principalement destiné à des bassins d'aquaculture, le système comprend un module d'aération et un module de thermorégulation dans lequel de l'air thermorégulé et de l'air comprimé sont combinés et acheminés au fond du corps d'eau. Ce mode de distribution combinée rend l'ensemble du processus de traitement de l'eau très économe en énergie. Dans d'autres modes de réalisation, le système comprend en outre un module d'ozonation et/ou un module de dosage de liquide. Le système décrit dans la présente invention maintient les paramètres du bassin tels que la teneur en oxygène dissous, la température, le pH, l'ammoniac et les nitrites à un niveau souhaitable.
PCT/IB2019/050550 2018-01-31 2019-01-23 Systèmes intégrés de traitement d'un plan d'eau et procédés associés WO2019150229A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN201841003664 2018-01-31
IN201841003664 2018-01-31

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WO2019150229A1 true WO2019150229A1 (fr) 2019-08-08

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8285129B2 (en) * 2008-06-24 2012-10-09 Kyungdong One Corporation Hot water supply system for constantly maintaining temperature of hot water
US8919743B2 (en) * 2004-05-25 2014-12-30 Board Of Trustees Of The University Of Arkansas System and method for dissolving gases in fluids and for delivery of dissolved gases
US20150068983A1 (en) * 2012-04-10 2015-03-12 Scandinavian Innovation Group Oy Disinfection device for water dispenser

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8919743B2 (en) * 2004-05-25 2014-12-30 Board Of Trustees Of The University Of Arkansas System and method for dissolving gases in fluids and for delivery of dissolved gases
US8285129B2 (en) * 2008-06-24 2012-10-09 Kyungdong One Corporation Hot water supply system for constantly maintaining temperature of hot water
US20150068983A1 (en) * 2012-04-10 2015-03-12 Scandinavian Innovation Group Oy Disinfection device for water dispenser

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