RU2257366C1 - Method for preparing organic fertilizer by utilization of cellulose-containing industrial waste - Google Patents

Abstract

FIELD: agriculture, biotechnology, fertilizers.

SUBSTANCE: method involves mixing cellulose-containing industrial waste with soil, its addition to prepared mixture of microorganisms, moistening the mixture and its incubation. Before addition of microorganisms to the mixture biocompost is to the mixture additionally prepared by processing avian dung, cattle manure, turf and saw-dust and soil, cellulose-containing industrial waste and biocompost are stirred in the ratio = 4:1:1, respectively. As microorganisms added to the prepared mixture method involves addition thermophilic cellulolytic microorganisms Clostridium thermocellum and Streptomyces sp. As a cellulose-containing industrial waste the method involves using the paper bulk representing waste in paper and pulp industry. Prepared mixture is wetted. Method provides acceleration of the utilization process of cellulose-containing industrial waste and to enhance quality of preparing organic fertilizer. Invention can be used in processing and utilization of cellulose-containing industrial waste resulting to preparing organic fertilizers.

EFFECT: improved preparing method.

3 cl, 1 ex

Description

The invention relates to agriculture, biotechnology, processing and disposal of cellulose-containing industrial waste, the production of organic fertilizers.

A known method of disposing of livestock farm animals by preparing a mixture of bird droppings, peat, sawdust, cattle manure and lignin.

As a result of microbiological processing of this waste mixture, biocompost of improved quality is obtained by introducing a suspension of bacteria Bacillus, Pseudomonas putida sp. and Klebsiella (Patent RU No. 2057103, class C 05 F 3/00, publ. 1996) [1].

However, this known method does not provide for the disposal of cellulose-containing industrial waste, such as osprey - waste from the pulp and paper industry and lint - waste from the textile and cotton industries.

The closest analogue of the proposed method is a method of recycling cellulose-containing industrial waste, including preparing a mixture consisting of soil and cellulose-containing industrial waste, introducing microorganisms into the prepared mixture, moistening the prepared mixture and incubating it to obtain organic fertilizer (OD Sidorenko. Prospects for waste processing pulp and paper industry into organic fertilizers. - J. Agrochemistry, 2003, No. 6, p. 64-65) [2].

However, the process of microbiological processing of cellulose-containing industrial waste by this known method is not effective enough due to the length of the process and insufficiently deep destruction of cellulose-containing industrial waste by microorganisms.

The technical result achieved by the present invention is to increase the volume of recycled cellulose-containing industrial waste by accelerating the process of their microbiological degradation, improving the quality of organic fertilizer obtained from cellulose-containing industrial waste.

The specified technical result is achieved by the fact that in the method of producing organic fertilizer by disposing of cellulose-containing industrial waste, including mixing the latter with soil, introducing microorganisms into the prepared mixture, moistening the mixture and incubating it to obtain organic fertilizer, a distinctive feature is that before introduction into the mixture of microorganisms, biocompost (high-temperature compost - KVN) obtained by processing bird droppings, cattle manure is additionally introduced into it cattle, peat and sawdust, and the soil, cellulose-containing industrial waste and biocompost are mixed in a ratio of 4: 1: 1, and thermophilic cellulolytic microorganisms Clostridium thermocellum and Streptomyces sp. are introduced into the prepared mixture as microorganisms.

As a cellulose-containing industrial waste, you can use skop - waste from the pulp and paper industry, as well as lint - waste from the textile and cotton processing industries.

It is recommended to moisten the prepared mixture to 60-65% of PV (full moisture capacity).

The biocompost used by the method according to the invention contains microorganisms actively involved in the process of destruction of cellulose-containing industrial waste. In addition, in the mixture into which the cellulose-containing industrial wastes subjected to degradation are introduced, the method according to the invention provides for the additional introduction of thermophilic cellulolytic microorganisms Clostridium thermocellum and Streptomyces sp. in an effective amount. This provides a more intensive microbiological conversion of cellulose-containing industrial waste into highly effective organic fertilizers.

The following are examples illustrating the invention.

Example 1

To obtain a biocompost, the following composition is prepared, wt.%:

Bird droppings 43

Cattle Manure 1.0

Peat 30

Sawdust the rest.

The components of the composition are thoroughly mixed and moistened to a moisture content of 60% PV. The prepared composition is incubated to obtain biocompost - the product of the microbiological transformation of the components of the composition. The prepared biocompost is mixed with soil and paper osprey - waste from the pulp and paper industry in a ratio of 1: 4: 1. The thermophilic cellulolytic microorganisms Clostridium thermocellum and Streptomyces sp. in an effective amount. The humidity of the prepared mixture was adjusted to 60% PV and incubated for 3 days. The resulting product of microbiological processing of the mixture compared with the product prepared by a known method [2] has improved physical properties: it is more loose, it has less strength, more pronounced friability, it has a more pronounced smell of the earth and contains fewer fibrous structures of paper osprey. The physical state of the obtained product is close to the physical state of humus. The germination rates of the seeds of test plants (radish and barley), the development of seedlings, the growth of their vegetative mass and roots are higher when growing test plants on the soil with the application of the obtained organic fertilizer in comparison with the use of organic fertilizer prepared in a known manner [2] . It took 3 days to obtain highly effective organic fertilizer. In a known manner [2] the disposal of cellulose-containing industrial waste organic fertilizer receive in 6 days.

Thus, the method according to the invention allows to accelerate the process of disposal of cellulose-containing industrial waste and improve the quality of organic fertilizers obtained from them.

Claims (3)

1. A method of producing organic fertilizer by disposing of cellulose-containing industrial waste, including mixing the latter with soil, introducing microorganisms into the prepared mixture, moistening the mixture and incubating it, characterized in that before the introduction of microorganisms into the mixture, the biocompost obtained by processing bird droppings is additionally introduced into it, cattle, peat and sawdust, and the soil, cellulose-containing industrial waste and biocompost are mixed in a ratio of 4: 1: 1, and as a microorganism in the prepared mixture is introduced thermophilic cellulolytic bacteria Clostridium thermocellum, and Streptomyces sp. 2. The method according to claim 1, characterized in that paper pulp is used as a pulp-containing industrial waste - waste from the pulp and paper industry. 3. The method according to claim 1, characterized in that the prepared mixture is moistened to a moisture content of 60-65% PV.