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Treatments of organic waste

A technology of organic waste and waste, applied in the field of organic waste treatment, can solve the problems of reducing the efficiency of bacterial fermentation process, increasing the complexity and loss of reactor design and use, etc.

Active Publication Date: 2021-07-30
格拉斯波特生物有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Second, the loss of carbon from organic waste in the form of methane gas leads to at least two problems
However, this low pH reduces the efficiency of the bacterial fermentation process and increases the complexity of reactor design and use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0146] Example 1 - Evaluation of the Effect of the Treatment of the Invention on Cumulative Biogas Production

[0147] Six 25 L drums containing 16 kg of slurry were used to assess the effect of the treatment of the invention. The slurry used was from Holstein Friesian grass fed cows.

[0148] Three buckets received no positive treatment, but were treated with water only and served as controls. Three other barrels were treated according to the invention with a composition capable of generating active species.

[0149] The composition used in the treatment included urea hydrogen peroxide adduct and potassium iodide. The concentration of the composition was 2.66 g / kg slurry, based on 2.4 g hydrogen peroxide-urea adduct and 0.265 g potassium iodide. This corresponds to a 4.2:1 ratio of hydrogen peroxide to iodide ions.

[0150] All barrels were sealed with modified lids to which air bags were attached, allowing any generated biogas to be collected. As the slurry biodegrades,...

Embodiment 2

[0155] Example 2 - Evaluation of the Effect of the Treatment of the Invention on the Concentration of Ammonium Compounds

[0156] The data in this example were generated from the same batch of slurry as in Example 1. Therefore, the treatment composition, controls and treatment conditions were the same as for Example 1.

[0157] At the end of each stage of treatment, the slurry in the 25L drums was thoroughly mixed and a subsample was taken just prior to reprocessing. This was immediately mixed with 4 volumes of extractant (2M KCl) for one hour before filtration was performed.

[0158] The ammonium concentration in the filtrate was measured using the colorimetric indophenol blue method as performed in the Merck Ammonium Test. image 3 Displays the ammonium concentration results for subsamples taken at the end of the experiment, ie after the fourth stage treatment.

[0159] image 3 It was shown that organic waste treated according to the invention maintains higher levels of...

Embodiment 3

[0160] Example 3 - Assessing the Fertilizer Capacity of Organic Waste Treated According to the Invention

[0161] The data in this example were generated from the same batch of slurry as in Example 1. Therefore, the treatment composition, controls and treatment conditions were the same as for Example 1.

[0162] On day 48 (end of stage 3) 1 kg of slurry was withdrawn from each 25 L bucket in order to assess the effect of the treatment on the fertilization capacity of the treated waste with respect to plant growth.

[0163] Three treatments were tested:

[0164] 1) No modification

[0165] 2) Modified with untreated slurry

[0166] 3) Modification with treated slurry

[0167] Ten replicate pots per treatment were filled with 1 kg of topsoil (+ / - modification). The slurry is premixed into the soil using a volume equal to the guide rate of up to 33 tonnes of slurry per hectare in one slurry application. This means that the amount of slurry used is 45g of slurry per pot. (“...

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PUM

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Abstract

The invention provides treatments of organic waste. The invention provides a method for treating organic waste (and in particular, animal waste such as waste from a cow), and uses of a composition that is capable of generating a reactive species in methods of reducing biological degradation of organic waste, in the treatment of organic waste. The invention also provides organic waste treated by the methods of the invention and uses of this treated organic waste. The invention also provides a method for improving the production of volatile fatty acids (VFA) and medium-chain carboxylic acids (MCCAs) during anaerobic digestion (AD) of organic waste.

Description

technical field [0001] The present invention provides a method for treating organic waste (and in particular, animal waste, such as organic waste from cattle), and compositions capable of producing reactive species to reduce the effectiveness of organic waste in organic waste treatment Use in a method of biodegradation. The invention also provides organic waste treated by the method of the invention and the use of such treated organic waste in downstream applications. The present invention also provides a method for improving the production of volatile fatty acids (VFA) and medium chain carboxylic acids (MCCA) during anaerobic digestion (AD) of organic waste. Background technique [0002] In conventional livestock farms, there is a known problem with the degradation of organic waste over time. It is also known that as organic waste degrades, the potential downstream utility of the waste decreases, thereby reducing the value of the waste. Although treatment methods are kno...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00B09B5/00C02F1/72C02F1/76C12P7/52C12P7/54C12P5/02
CPCC02F2103/20Y02E50/30C05F3/00C05F5/00C05F9/00Y02W30/40B09B3/80B09B3/65C02F1/50C02F1/766C02F3/28C02F11/02C02F11/06C02F2209/28C02F2305/02
Inventor V·奥弗莱厄蒂C·索恩C·桑利R·弗里尔
Owner 格拉斯波特生物有限公司
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