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WO1997010190A1 - Procede et systeme de traitement des dechets - Google Patents

Procede et systeme de traitement des dechets Download PDF

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Publication number
WO1997010190A1
WO1997010190A1 PCT/AU1996/000578 AU9600578W WO9710190A1 WO 1997010190 A1 WO1997010190 A1 WO 1997010190A1 AU 9600578 W AU9600578 W AU 9600578W WO 9710190 A1 WO9710190 A1 WO 9710190A1
Authority
WO
WIPO (PCT)
Prior art keywords
waste
processing
sewage
processing waste
castings
Prior art date
Application number
PCT/AU1996/000578
Other languages
English (en)
Inventor
Gerard Gillespie
Original Assignee
Act Department Of Urban Services
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 Act Department Of Urban Services filed Critical Act Department Of Urban Services
Priority to AU69188/96A priority Critical patent/AU6918896A/en
Publication of WO1997010190A1 publication Critical patent/WO1997010190A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F3/00—Fertilisers from human or animal excrements, e.g. manure
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
    • C05F17/05—Treatments involving invertebrates, e.g. worms, flies or maggots
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/141—Feedstock
    • Y02P20/145—Feedstock the feedstock being materials of biological origin
    • 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
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse

Definitions

  • the present invention relates to a method and system for processing waste, utilising earthworms or the like.
  • the present invention relates to a method of processing a combination of organic waste material such as sludge, sewage or the like, and, cellulose fibre.
  • the present invention has particular application to the processing of sewage sludge, typically contained in sludge lagoons or the like, which commonly have high levels of heavy metals, such as cadmium.
  • a useful plant growth fertiliser/additive soil conditioner material is produced, and, in addition, heavy metals are removed from the sludge.
  • waste management departments of local Government organisations One of the responsibilities of waste management departments of local Government organisations is to carry out regular garbage collections from domestic and commercial premises. In fairly recent times, such waste material is being sorted by the householder into recyclable and non-recyclable material. The recyclable material is sometimes even sorted into different types of recyclable material such as paper, bottles, etc. Waste organisation/management can then transport the bottles, recyclable paper and other recyclable materials to the appropriate recycling authorities, and discard the remainder at land fills, etc.
  • One ofthe materials which is typically collected by such waste management organisations is 'soiled paper material', such as paper which is contaminated with food remnants or other materials. Such materials are generally classified with those materials which -ire non-recyclable.
  • the present invention seeks to 'recycle' such 'non-recyclable' paper materials and the like as one source of cellulose fibre.
  • sewerage treatment works comprise ponds containing sludge which are contaminated with a cocktail of heavy metals and organic contaminants.
  • sewage ponds containing sludge which are contaminated with a cocktail of heavy metals and organic contaminants.
  • the present invention seeks to provide a method of reclaiming such sewage pond materials. It is also presently known to utilise earthworms in "compost bins" for the breakdown of organic material, including garden clippings and vegetable waste. The worms feed on the organic materials, such that their digestive processes cause the breakdown ofthe organic matter.
  • the present invention seeks to provide a method and system for processing waste, which utilises earthworms or the like.
  • the present invention seeks to provide a waste processing method and system which can turn a combination of waste materials into useful products.
  • the present invention seeks to provide a waste reduction process whereby a material which is generally considered to be non-recyclable such as soiled paper and cardboard or other cellulose can be processed and effectively recycled.
  • the present invention also seeks to provide a waste reduction process which processes organic material such as sludge, sewage, and like material.
  • the present invention also seeks to provide a waste reduction process, wherein, in the processing ofthe sludge sewage and like material, heavy metals are removed from the material.
  • the present inventions also seeks to provide a waste reduction process which utilises earthworms, or the like.
  • the present invention provides a method of processing waste, utilising earthworms or the like, comprising the steps of: shredding paper, cardboard or material; mixing said shredded material with organic waste material, such as sludge, sewage or the like; supplying said earthworms or the like to said mixture such that said animals digest said mixture and produce castings.
  • said organic waste material is derived from a sewage or sludge pond or the like.
  • said organic waste material may contain heavy metals, such as cadmium.
  • the process preferably further comprises the steps of: separating said earthworms from said castings; or processing said castings for use as a fertiliser/additive material.
  • said processing step when processing said castings, comprises: forming a solution utilising said castings; adjusting the pH of said solution to an alkaline solution, preferably having a pH of approximately 8. 5, by adding alkali such as sewage ash, lime, or the like, such that precipitation of heavy metals, such as cadmium, occurs therefrom.
  • alkali such as sewage ash, lime, or the like
  • a ratio of said mixture is about 50% shredded material and about 50% waste material, but may vary to suit available food sources and worm species used.
  • said mixture and said earthworms or the like are provided in conditions having predetermined moisture, temperature and/or nutrient levels.
  • said moisture levels are damp to extremely high, said temperature ranges are from about 1 5 C to 26 C, but preferably about 23 C, and, said nutrient levels are maintained by providing a relatively high level of bacteria.
  • Fig. 1 illustrates a schematic flowchart outlining the various steps in a heavy metal extracted process ofthe present invention
  • Fig. 2 illustrates a 'closed loop' farming/processing system ofthe present invention
  • Fig. 3 illustrates a schematic flow chart of a composite worm waste reduction process.
  • the Applicant of the present invention is a government authority which is responsible for the routine collection and processing of domestic and commercial waste. Whilst various parts of such household and commercial waste are able to be re-used, by recycling processes, not all ofthe collected garbage, for instance, organically contaminated paper and cardboard material, including paper and cardboard material soiled by foodstuffs, etc., is able to be recycled.
  • the present invention provides a method of reducing waste which can utilise such cardboard and waste material, which is generally considered to be 'non-recyclable'.
  • the Applicant of the present invention is also responsible for management and reclamation of decommissioned sewerage treatment ponds, including the Coppins Crossing and
  • Past practices of sewage disposal by commercial and industrial entities have resulted in waste fluid products of a variety of forms, being provided into the sewage system. This has resulted in various levels of metal contamination ofthe sludge held in such ponds. Samples from such ponds have been analysed by the inventors revealing a cocktail of heavy metals and organic pollutants. Specific levels of contamination vary between different ponds, but typically, the major contaminants are cadmium, chromium, copper, lead, organic pollutants and zinc.
  • the present invention seeks to provide a method of reclaiming such sewage ponds by utilising a specific process which inco ⁇ orates the use of earthworms or the like.
  • the inventors have discovered that earthworms can be used to reduce the levels of heavy metals in sewage sludge, whilst at the same time rendering the processed material pathogen free and available as a soil conditioner.
  • the process of the present invention takes advantage of waste material, such as solid papers and cardboard, in the processing of organic material, including such sewage or sludge.
  • waste material such as solid papers and cardboard
  • organic material including such sewage or sludge.
  • the mixture is then suitable for processing using the earthworms or the like.
  • Fig. 1 describes a preferred embodiment of the invention whereby a sewage or sludge pond may be remediated utilising the system in accordance with the present invention.
  • the organic material from a sewage pond 1, contaminated with heavy metals and the like, is aerated 2 and then mixed 3 with paper or the like 4, primarily to increase the bacteria production and worm food value, but also consequentially to decrease the proportion of metal contamination by, say 50%.
  • the next step 5 is the processing ofthe sewage sludge by worms, to produce castings. As the worms process acidic waste, the mixed material goes through a pH shift, whilst the worms absorb heavy metals into their bodies.
  • the level of cadmium and other heavy metals is then low enough to be used on broad acre crops.
  • the next step 7 is to remove the heavy metals.
  • the pH ofthe mix is adjusted to about 8.5 by adding sewage ash or lime. As the material reaches a pH level of about 8.5, as shown in step 7, heavy metals drop out ofthe solution by precipitation.
  • the solution may then be pumped off for transportation, as shown in step 8, for use on broad acre crops 9, and the castings may be dried as shown in step 10, and processed for the separation of selected metals 11.
  • a "closed loop" farming/processing system is being another prefe ⁇ ed embodiment ofthe present invention, is shown in Fig. 2, which starts and finishes with an animal 20 consuming a protein product 21.
  • the excrement 22 from the animal 20 is then supplied into a worm bed 23 for appropriate decomposition by the worms.
  • Excess worms may be washed in a water/alcohol mixture 24, dried and cured in an oven or like device 25, for supply, as protein, back into the feeder 21.
  • the worm castings may be supplied for agricultural pu ⁇ oses 26 for the growing of grain crops or lucerne crops, again for consequential resupply into the feeder 21.
  • FIG. 3 A preferred embodiment of an overall process ofthe invention, shown in Fig. 3.
  • the garbage is sorted by a known sorting conveyor the like 32, such that the organics are separated therefrom.
  • the organics are then shredded as indicated at reference numeral 33, and mixed in a suitable mixing apparatus 34, with paper, cardboard and the like.
  • a suitable aerating agent may additionally be supplied into the mixer 34.
  • Various additional steps may be included as indicated by reference numeral 36, such as re-injection of warm air to encourage rapid breakdown of organics to kill harmful pathogens and assist breakdown. Additional additives may be supplied at this point, depending upon the material being processed.
  • the mixed material 37 After output ofthe mixed material 37, it is supplied into worm beds 38 and left until it is at least partially decomposed. After processing of the material 37, excess worms may be supplied for further processing as indicated at reference numeral 39, whilst the worm castings may be supplied for alternative processing as indicated by reference numeral 40.
  • the processing ofthe excess worms 39 may inco ⁇ orate the steps of washing the worms in a water/alcohol mix 41 , drying them in an oven to dry the worm protein 42, and then crushing the dry protein at 43.
  • the crushed dry protein may be then utilised for aquaculture purposes or the like 44.
  • the worm castings may be processed by firsdy drying and sieving them 45, and preparing them for application, 46 as a fertiliser or other soil conditioner 47, for agricultural pu ⁇ oses.
  • the following flow cha illustrates an overview of the process in accordance with the present invention, providing an indication of the typical time to perform the process and an estimate of costs experienced/estimated by the Applicant
  • Any township of up to 40,000 population can use this process to produce castings for broad acre application from sewage sludge and paper waste especially in locations where recycling in impractical. • The process could be applied to a variety of soil remediation projects including those with arsenic contamination.
  • the technology would remain the patented property ofthe ACT and has the potential to generate funds in any area which has a sewage scheme.
  • the following flow chart illustrates an overview ofthe remediation process in processing sewage wastes using worm farming.
  • Total processing time for material is 7 weeks.
  • the weekly total throughout is 40 tonne. This would cost $880 to dispose of in landfill. Once established the farm can process the same quantity of material every day. The value of $500 per tonne is the retail price. If the farm were designed to handle 40 tonne of raw organics per week the weekly throughput would be value at $ 10,000.
  • the present invention provides a method of processing waste which utilises a mixture of shredded paper, cardboard or like material and organic material such as organic waste material, sludge, sewage or the like. By mixing these ingredients together, and the supply earthworms thereto, the animals digest the mixture and produce castings.
  • the earthworms can be utilised to form a high protein product which may be utilised for stock feed or aquaculture, and the castings may be utilised as a fertiliser additive material or a soil conditioner.
  • the worm castings may be applied to a broad acre crop plantings by mixing the castings in either a fluid o dried form with paper and other waste products. This combined material would then be partially dried and formed into pellets. The pellets would be spread onto farmlands using a supe ⁇ hosphate spreader or other type of machinery.
  • worms In such a system, obviously, certain factors are preferred. For example, for the worms to effectively be utilised, and to consume quantities of material, it is necessary that there are adequate moisture levels, adequate ambient temperature ranges, and satisfactory nutrient levels.
  • Various earthworms are suitable for the process ofthe invention, being segmented type worms. Such worms have no lungs to absorb oxygen, but rather, have tiny blood vessels which are abundant in the skin, which the earthworm uses a respiratory organ to obtain oxygen. Because gas exchange must occur across a film of moisture, an earthworm suffocates if the skin dries. Whilst it is critical that the moisture level be maintained, their tolerance level can range from damp to extremely high. Consequently, adequate moisture levels must be prevalent.
  • Worms of varying species have been found to have temperature tolerances up to as high as 38°C. Activities considerably reduce below temperatures of about 11°C.
  • the optimum range for earthworm cocoon production is 15 - 25°C.
  • a temperature of 23°C is also optimum for body growth.
  • the food mixtures for the worms should contain relatively high levels of bacteria.
  • the food supplies of worm species are usually acidic in the process in accordance with the present invention, i.e. sewage or sludge, before the food goes into the gut ofthe worm, the pH level must be made more alkaline.
  • the worm has glands in it's mouth which secrete calcium into the food supply before it reaches the gut. The end result of this action is a more alkaline product being produced by the worm. At the same time, this product is also highly water soluble.
  • the gut bacteria of earthworms also has the ability to eliminate pathogens as part ofthe digestive process. Sewage sludge can be rendered pathogen free and suitable for use as agricultural applications after use as a food supply for worms. The process will also eliminate heavy metals from sludge.
  • non-recyclable type paper products that is, paper products which have been contaminated by food stuffs, etc., can be pulped or shredded, and this cellulose fibre mixed with the sewage sludge.
  • Applicant confirms that a ratio of 50/50 is readily consumed by the worms.
  • the paper component could be further raised by the use of sewage sludge to the higher nutrient level.
  • the cadmium level has been found to be reduced from 1 8ppm to 9ppm. As the worms process this food supply, it will absorb an amount ofthe cadmium. Worms can absorb concentrations of cadmium as high a 143.7ppm. This ability further reduces the cadmium levels, typically by about 3 ppm, leaving a level of about 6ppm in the remaining castings.
  • the casting however now have a pH closer to 7 or neutral and are water soluble or readily soluble. By raising the pH level above about 8.5, heavy metals commence to drop out of the solution. If the castings, now of approximate pH level 6, are then mixed into an alkaline solution, the cadmium and all other heavy metals drop out of the solution, rendering the remaining casting solution, suitable for use as an agricultural soil conditioner.
  • this process can be applied to any heavy metal contaminated material which can be passed through the guts of worms.
  • contaminated soils can be mixed with a worm food mix, and the process used as described.
  • the present invention has therefore provided a method of processing wastes which has a number of advantages. Such advantages include the very economical method for the removal of heavy metals, the ability to process sewage waste for reuse, the ability to re-use a previously non-recyclable paper product. It will therefore be appreciated that the present invention has numerous commercial advantages.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Tropical Medicine & Parasitology (AREA)
  • Biotechnology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Microbiology (AREA)
  • Molecular Biology (AREA)
  • Insects & Arthropods (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

Cette invention concerne un procédé et un système de traitement des déchets ainsi que le produit obtenu au moyen dudit procédé. Ce procédé consiste à alimenter un mélange de déchets en lombrics, de façon à ce que ces lombrics digèrent le mélange et produisent des turricules. Ledit mélange comporte du papier effiloché, du carton ou d'autres matières analogues, ainsi que des boues, des eaux d'égout ou analogues, qui peuvent généralement comporter des teneurs élevées en métaux lourds, du type cadmium. Ledit procédé convient particulièrement au traitement des déchets organiques provenant de bassins de stockage des eaux d'égout ou des boues. Le produit obtenu peut servir d'engrais destiné, par exemple, aux cultures de grande étendue, ou de source de nourriture pour l'aquaculture.
PCT/AU1996/000578 1995-09-13 1996-09-13 Procede et systeme de traitement des dechets WO1997010190A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU69188/96A AU6918896A (en) 1995-09-13 1996-09-13 A method and system of processing waste

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPN5410 1995-09-13
AUPN5410A AUPN541095A0 (en) 1995-09-13 1995-09-13 A method and system of processing waste

Publications (1)

Publication Number Publication Date
WO1997010190A1 true WO1997010190A1 (fr) 1997-03-20

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Application Number Title Priority Date Filing Date
PCT/AU1996/000578 WO1997010190A1 (fr) 1995-09-13 1996-09-13 Procede et systeme de traitement des dechets

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AU (1) AUPN541095A0 (fr)
WO (1) WO1997010190A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010091069A (ko) * 2000-03-13 2001-10-23 김종오 지렁이 분변토를 이용한 유기성 폐기물의 퇴비화 방법
WO2002046127A3 (fr) * 2000-12-06 2002-08-15 Melissa S Heat Bug And Worm Co Procede et appareil de traitement de dechet
WO2005016833A1 (fr) * 2003-08-15 2005-02-24 Aso Holdings Pty Ltd Procede de traitement des eaux usees
NL1028290C2 (nl) * 2005-02-16 2006-08-17 Sr Technologie B V Werkwijze voor het afbreken van slib met behulp van een populatie oligochaeten gehouden in een reactor, een inrichting daarvoor, en het gebruik van nestelende oligochaeten voor het afbreken van slib in een reactor.
WO2007053033A1 (fr) 2005-10-31 2007-05-10 Agronova As Procede de fabrication d'une boue organique assainie
WO2012168550A1 (fr) * 2011-06-07 2012-12-13 Kiteen Mato Ja Multa Oy Mélange de compost et procédé pour compostage
WO2016093686A1 (fr) * 2014-12-09 2016-06-16 Instituto Superior Autónomo De Occidente A.C. Procédé et système pour le traitement d'effluents résiduels contaminés par des métaux
CN105710119A (zh) * 2014-10-21 2016-06-29 苗庆龄 一种重金属污染土壤的修复方法
CN111826168A (zh) * 2020-08-06 2020-10-27 天津科技大学 一种酱油渣生物炭重金属土壤改良剂的制备方法及其产品

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2558257A1 (de) * 1975-12-23 1977-07-07 Kneer Franz X Verfahren zum umsetzen tierischer exkremente
EP0098753A1 (fr) * 1982-07-02 1984-01-18 National Research Development Corporation Procédé pour l'utilisation de déchets animaux et végétaux
DE3322015A1 (de) * 1983-06-18 1984-12-20 Johannes Dipl.-Ing. 8967 Oy-Mittelberg Cürten Vorrichtung zur intensivzucht von regenwuermern
FR2587993A1 (fr) * 1985-09-30 1987-04-03 Aubert Jean Marc Procede de transformation de dechets organiques en engrais et en proteines

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2558257A1 (de) * 1975-12-23 1977-07-07 Kneer Franz X Verfahren zum umsetzen tierischer exkremente
EP0098753A1 (fr) * 1982-07-02 1984-01-18 National Research Development Corporation Procédé pour l'utilisation de déchets animaux et végétaux
DE3322015A1 (de) * 1983-06-18 1984-12-20 Johannes Dipl.-Ing. 8967 Oy-Mittelberg Cürten Vorrichtung zur intensivzucht von regenwuermern
FR2587993A1 (fr) * 1985-09-30 1987-04-03 Aubert Jean Marc Procede de transformation de dechets organiques en engrais et en proteines

Non-Patent Citations (7)

* Cited by examiner, † Cited by third party
Title
ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY, Volume 23, issued 1992, New York, U.S.A., G. BENGTSSON et al., "Seasonal Variation of Lead Uptake in the Earthworm 'Lumbricus Terrestris' and the Influence of Soil Liming and Acidification", pages 198-205. *
ECOLOGICAL BULLETINS, Volume 39, issued 1988, Copenhagen, Denmark, WEI-CHUN MA, "Toxicity of Copper to Lumbricid Earthworms in Sandy Agricultural Soils Amended with Cuenriched Organic Waste Materials", pages 53-56. *
ENVIRONMENTAL POLLUTION (SERIES A), Volume 33, issued 1984, Netherlands, WEI-CHUN MA, "Sublethal Toxic Effects of Copper on Growth, Reproduction and Litter Breakdown Activity in the Earthworm 'Lumbricus Rubellus', with Observations on the Influence of Temperature and Soil pH", pages 207-219. *
K.A. HANDRECK, "Composting", published 1993, by CSIRO (AUSTRALIA), page 3. *
PEDOBIOLOGIA, Volume 24, issued 1982, MALECKI, M.R. et al., "The Effects of Metals on the Growth and Reproduction of 'Eisenia Foetida'", pages 129-137. *
PEDOBIOLOGIA, Volume 30, No. 3, issued 1987, BEYER, N.W. et al., "Relation of pH and Other Soil Variables to Concentrations of Pb, Cu, Zn, Cd and Se in Earthworms", pages 167-172. *
PEDOBIOLOGICA, Volume 40, No. 1, issued 1996, D.J. SPURGEON et al., "Effects of Variations of Organic Matter Content and pH of Soils on the Availability and Toxicity of Zinc to Earthworm 'Eisonia Fetida'", pages 80-96. *

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010091069A (ko) * 2000-03-13 2001-10-23 김종오 지렁이 분변토를 이용한 유기성 폐기물의 퇴비화 방법
WO2002046127A3 (fr) * 2000-12-06 2002-08-15 Melissa S Heat Bug And Worm Co Procede et appareil de traitement de dechet
WO2005016833A1 (fr) * 2003-08-15 2005-02-24 Aso Holdings Pty Ltd Procede de traitement des eaux usees
NL1028290C2 (nl) * 2005-02-16 2006-08-17 Sr Technologie B V Werkwijze voor het afbreken van slib met behulp van een populatie oligochaeten gehouden in een reactor, een inrichting daarvoor, en het gebruik van nestelende oligochaeten voor het afbreken van slib in een reactor.
WO2006088356A1 (fr) * 2005-02-16 2006-08-24 Sr Technologie B.V. Procédé de réduction de la boue à l’aide d’une population d’oligochaeta conservée dans un réacteur, dispositif correspondant, et utilisation d’une colonie d’oligochaeta pour réduire la boue dans un réacteur
WO2007053033A1 (fr) 2005-10-31 2007-05-10 Agronova As Procede de fabrication d'une boue organique assainie
US7820049B2 (en) 2005-10-31 2010-10-26 Agronova As Method for manufacture of sanitized organic sludge
WO2012168550A1 (fr) * 2011-06-07 2012-12-13 Kiteen Mato Ja Multa Oy Mélange de compost et procédé pour compostage
CN105710119A (zh) * 2014-10-21 2016-06-29 苗庆龄 一种重金属污染土壤的修复方法
WO2016093686A1 (fr) * 2014-12-09 2016-06-16 Instituto Superior Autónomo De Occidente A.C. Procédé et système pour le traitement d'effluents résiduels contaminés par des métaux
CN111826168A (zh) * 2020-08-06 2020-10-27 天津科技大学 一种酱油渣生物炭重金属土壤改良剂的制备方法及其产品

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Publication number Publication date
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