WO2009087259A1 - Procédé pour le traitement des eaux provenant du lavage de produits agricoles - Google Patents

Procédé pour le traitement des eaux provenant du lavage de produits agricoles Download PDF

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Publication number
WO2009087259A1
WO2009087259A1 PCT/ES2009/000013 ES2009000013W WO2009087259A1 WO 2009087259 A1 WO2009087259 A1 WO 2009087259A1 ES 2009000013 W ES2009000013 W ES 2009000013W WO 2009087259 A1 WO2009087259 A1 WO 2009087259A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
minutes
washing
time
treatment
Prior art date
Application number
PCT/ES2009/000013
Other languages
English (en)
Spanish (es)
Inventor
Antonio Molina Diaz
María José AYORA CAÑADA
María Luisa FERNANDEZ DE CORDOVA
María GUARDIA RUBIO
María Isabel PASCUAL REGUERA
Antonio Ruiz Medina
Original Assignee
Universidad De Jaén
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 Universidad De Jaén filed Critical Universidad De Jaén
Publication of WO2009087259A1 publication Critical patent/WO2009087259A1/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
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • C02F1/5254—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using magnesium compounds and phosphoric acid for removing ammonia
    • 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
    • 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
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • 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
    • C02F2101/30—Organic compounds
    • C02F2101/306—Pesticides

Definitions

  • Wastewater treatment from the washing of agricultural products is wastewater treatment from the washing of agricultural products.
  • the main source of liquid waste generation in the fruit and vegetable processing industry is the process of washing them and the machinery and equipment of the production line.
  • the discharge, without prior treatment, of liquid waste from the fruit and vegetable products processing industry can cause significant contamination of the receiving waters.
  • the organic material constitutes the main pollutant, the problems of water pollution will be related mainly to the decomposition of said material, which can result in a decrease in water oxygen, fish death, biogas production and emission and formation of a floating material layer.
  • the liquid discharges have a high concentration of solids, a layer of sediment may form at the bottom of the receiving waters, where anaerobic degradation can occur with the consequent formation of malodorous gases.
  • the present invention provides a solution to this double problem of the washing waters from the fruit and / or vegetable processing industry, allowing its integral treatment, so that the final effluent can be reused or discharged.
  • the present invention has as its object the development of a process for the treatment of washing waters of the fruit and vegetable processing industries, particularly for the treatment of water from olive washing machines in oil mills, thus allowing their subsequent reuse after effective disposal both of suspended materials and pesticide residues.
  • the proposed method is based on a clarification process by adding a coagulating agent for the elimination of suspended matter, together with the use of an adsorbent for the elimination of pesticide residues. With this procedure, pesticides are eliminated from the water from the washing machines of agricultural products.
  • the proposed invention makes it possible to obtain a transparent, clean and pesticide-free water, which can be recirculated to the same washing process or discharged.
  • First stage The washing water contaminated with suspended matter and agrochemical compounds, kept under stirring, is subjected to a coagulation / flocculation process by the addition under suitable conditions of a coagulating agent, preferably between 10 and 1000 mg of AI 2 ( SO 4 ) 3 or FeCI 3 per liter of water.
  • a coagulating agent preferably between 10 and 1000 mg of AI 2 ( SO 4 ) 3 or FeCI 3 per liter of water.
  • the mixture is made by stirring slowly for a time between 10 seconds and 10 minutes, after which it is allowed to settle for 1 to 100 minutes. In that time the flocs can be easily separated, leaving the water transparent, free of suspended particles.
  • Second stage An optimum amount of a suitable adsorbent material, such as activated carbon, diatomaceous earth, etc., is added to the water.
  • a suitable adsorbent material such as activated carbon, diatomaceous earth, etc.
  • a suitable adsorbent material such as activated carbon, diatomaceous earth, etc.
  • the adsorbent effectively retains the residues of agrochemical compounds present, particularly pesticides, ultimately resulting in water that can be recirculated to the washing process or discharged abroad.
  • the liquid resulting from the first stage must be kept under stirring.
  • an optionally filtering phase can be inserted for the elimination of the flocs formed in the first stage. In this case, it would be possible to reuse the active carbon after the desorption of the pesticides.
  • Second stage To the wash water from olive mill processing, subjected to mechanical agitation, 300 mg of FeCI 3 per liter of water was added as coagulant. The mixture was stirred slowly for 1 minute and allowed to settle for 10 minutes, after which a clear water, free of suspended matter, was obtained by decantation.
  • Second stage Next, to the water resulting from the previous stage, maintained under mechanical agitation, 200 mg of activated carbon sprayed per liter of initial water was added as adsorbent, stirring again for 1 minute. The mixture was allowed to settle for 10 minutes. After this time, a water free of solids and pesticide residues was obtained by decantation. The analyzes of the treated water showed an efficient elimination of the herbicides diuron, terbutylazine and oxyfluorfen; and of the insecticide endosulfan and its degradation product endosulfan sulfate.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

L'invention concerne un procédé pour le traitement d'eaux provenant du lavage de produits agricoles pratiqué par les industries des fruits et légumes, plus particulièrement, pour le traitement des eaux provenant de machines de lavage des olives dans des moulins à huile, afin de permettre le recyclage de ces eaux grâce à l'élimination efficace des matériaux en suspension et des résidus de pesticides. Le procédé décrit dans cette invention consiste en un procédé de clarification par adjonction d'un agent coagulant permettant l'élimination de la matière en suspension, conjointement avec un adsorbant permettant l'élimination des résidus de pesticides. Ce procédé permet d'éliminer les pesticides de l'eau provenant des machines de lavage de produits agricoles. Ce mode de réalisation permet d'obtenir une eau transparente, propre et exempte de pesticides, qui être réutilisée dans le même processus de lavage ou être évacuée.
PCT/ES2009/000013 2008-01-11 2009-01-07 Procédé pour le traitement des eaux provenant du lavage de produits agricoles WO2009087259A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200800153A ES2324141B1 (es) 2008-01-11 2008-01-11 Procedimiento para el tratamiento de aguas procedentes del lavado de productos agricolas.
ESP200800153 2008-01-11

Publications (1)

Publication Number Publication Date
WO2009087259A1 true WO2009087259A1 (fr) 2009-07-16

Family

ID=40852814

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2009/000013 WO2009087259A1 (fr) 2008-01-11 2009-01-07 Procédé pour le traitement des eaux provenant du lavage de produits agricoles

Country Status (2)

Country Link
ES (1) ES2324141B1 (fr)
WO (1) WO2009087259A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104140150A (zh) * 2014-07-21 2014-11-12 安徽三环水泵有限责任公司 一种化工污水的一级物化强化处理混凝剂
CN104140151A (zh) * 2014-07-21 2014-11-12 安徽三环水泵有限责任公司 一种电镀污水的一级物化强化处理混凝剂
CN104140148A (zh) * 2014-07-16 2014-11-12 安徽三环水泵有限责任公司 一种城镇污水的一级物化强化混凝剂及其处理方法
CN104140147A (zh) * 2014-07-16 2014-11-12 安徽三环水泵有限责任公司 一种油田污水的一级物化强化混凝剂及其处理方法
CN104150575A (zh) * 2014-07-04 2014-11-19 安徽三环水泵有限责任公司 一种印染污水的一级物化强化混凝剂及其处理方法
CN104724810A (zh) * 2015-04-04 2015-06-24 青岛大学 一种以天然高分子为主要成分的环保絮凝剂
CN109824206A (zh) * 2019-03-15 2019-05-31 先正达（苏州）作物保护有限公司 一种高浓度废水的处理方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2367734B2 (es) * 2011-07-11 2012-03-16 Universidad De Granada Procedimiento de extracción de �?cidos triterpénicos e hidroxitirosol a partir de soluciones de aderezo de aceitunas.
ES2412011B1 (es) * 2012-01-05 2014-04-21 Decco Ibérica Post Cosecha, S.A. Dispositivo de tratamiento de agua en máquinas lavadoras de fruta

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5135659A (en) * 1991-05-23 1992-08-04 Atochem North America, Inc. Agricultural waste water treatment
JPH0780497A (ja) * 1993-09-14 1995-03-28 Tsurumi Soda Co Ltd 廃液処理方法
ES1041976U (es) * 1999-02-03 1999-08-01 Tecnidex Tecnicas De Desinfecc Equipo de depuracion de aguas residuales de centrales hortofruticolas y tratamientos fitosanitarios en campo.
US20060081537A1 (en) * 2003-02-26 2006-04-20 Carlos Campos Method and system for the treatment of liquid effluents containing pollutants in a suspension

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5135659A (en) * 1991-05-23 1992-08-04 Atochem North America, Inc. Agricultural waste water treatment
JPH0780497A (ja) * 1993-09-14 1995-03-28 Tsurumi Soda Co Ltd 廃液処理方法
ES1041976U (es) * 1999-02-03 1999-08-01 Tecnidex Tecnicas De Desinfecc Equipo de depuracion de aguas residuales de centrales hortofruticolas y tratamientos fitosanitarios en campo.
US20060081537A1 (en) * 2003-02-26 2006-04-20 Carlos Campos Method and system for the treatment of liquid effluents containing pollutants in a suspension

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104150575A (zh) * 2014-07-04 2014-11-19 安徽三环水泵有限责任公司 一种印染污水的一级物化强化混凝剂及其处理方法
CN104150575B (zh) * 2014-07-04 2015-10-28 安徽三环水泵有限责任公司 一种印染污水的一级物化强化混凝剂及其处理方法
CN104140148A (zh) * 2014-07-16 2014-11-12 安徽三环水泵有限责任公司 一种城镇污水的一级物化强化混凝剂及其处理方法
CN104140147A (zh) * 2014-07-16 2014-11-12 安徽三环水泵有限责任公司 一种油田污水的一级物化强化混凝剂及其处理方法
CN104140150A (zh) * 2014-07-21 2014-11-12 安徽三环水泵有限责任公司 一种化工污水的一级物化强化处理混凝剂
CN104140151A (zh) * 2014-07-21 2014-11-12 安徽三环水泵有限责任公司 一种电镀污水的一级物化强化处理混凝剂
CN104724810A (zh) * 2015-04-04 2015-06-24 青岛大学 一种以天然高分子为主要成分的环保絮凝剂
CN109824206A (zh) * 2019-03-15 2019-05-31 先正达（苏州）作物保护有限公司 一种高浓度废水的处理方法

Also Published As

Publication number Publication date
ES2324141B1 (es) 2010-05-25
ES2324141A1 (es) 2009-07-30

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