KR20030064994A - A vegetation soil for sludge and the producing method thereof - Google Patents

Abstract

PURPOSE: Provided is a production method of vegetation soil excellent in retainment and supplement of water, slope-attachment and corrosion-resistance for easy sprouting and growing of plants by using sewage sludge. CONSTITUTION: The vegetation soil is produced by the following steps of: mixing 35-40wt.% of sewage sludge removing heavy metals, 15-20wt.% of paper sludge and 10-15wt.% of waste matter; adding 10-30wt.% of soil such as yellow earth, polishing sand and/or clay for ventilation and drainage, 4-5wt.% of minerals such as limestone, vermiculite and zeolite, for fertilization and water retainment, and 6-10wt.% of vegetable remains such as saw dust, rice bran and wood powder; fermenting at room temperature for 30days.

Description

A vegetation soil for sludge and the producing method

The present invention relates to a vegetation soil used for landscaping water, garden water, rock reclamation and land improvement using waste such as wastewater treatment sludge, and more particularly, a soil having a poor topsoil such as cut soil and rock slope. To 40 to 40% by weight of sludge such as sewage sludge selected from heavy metals, 15 to 20% by weight of paper sludge, 10 to 15% by weight of incineration residue To prepare a primary mixture by mixing and stirring, 10 to 30% by weight of soil (soil), such as masato, ocher or clay, 4 to 5% by weight minerals, 6 to 10% by weight of vegetable residues After mixing and stirring, the present invention relates to a vegetation soil using sludge and characterized in that it is produced by fermentation aging at room temperature for 30 days and a method for producing the same.

Roads, golf courses, civil engineering areas, and heavy metal contamination sites where greening is carried out are mostly made of soil that is not suitable for rock formation or plant growth. Soil conditions in these areas are low, even if there is no soil layer, so they are usually in a very unfavorable environment for plants to settle, and it is difficult to continuously grow plants because they cannot supply nutrients for a long time even if the plants take root. In order to solve this problem, the vegetation soil can be grown quickly, and the green soil soil technique, which sprays the seeds on the vegetation soil with excellent slope adhesion and erosion resistance, has been widely used.

Multi-faceted research on these vegetation soils is under way, and the Korean national patent publication No. 96-3537, peat, onicake, pulp sludge, sawdust, masato, earthworm powder, viscous clay composition composed of microorganisms of viscous bacteria or domestic patent Research on vegetation soils based on the recycling of resources using waste materials, such as briquettes, paper by-products, boiled sawdust, peat, and corrosive compositions of Masato, has been actively conducted.

However, the vegetation soil used in the above-mentioned chlorine soil method is mainly formulated with a focus on slope adhesion and sedimentation resistance, and after drying, it hardens so hard that the root growth of the plant is inhibited, so that it is disadvantageous to grow and grow on the native plants of Korea. Due to the lack of natural scenery and too much emphasis on waste recycling, organic wastes such as sewage sludge, paper sludge and manure and other materials such as briquettes and activated carbon are randomly applied without undergoing verification of the material's function. As the mixing ratio is over a wide range, it is difficult to obtain the same effect because of the reproducibility and continuous supply of materials in actual construction. There was a problem that the cracking phenomenon occurs, the growth of the plant is reduced .

The present invention is to solve this problem is excellent in water retention and supply power, long water retention capacity, small hardness due to drying, slope adhesion and erosion resistance is increased, so that the germination rate and initial coverage is lower than that of grasses Its purpose is to provide the vegetation soil for the recycling of industrial waste treatment, while conserving soil permanently and suitable for the cultivation of lawns for gardening and gardening.

In order to achieve the above object, the primary mixture is prepared by mixing and stirring 35 to 40% by weight of sludge such as sewage sludge from which heavy metals are selected, 15 to 20% by weight of paper sludge, and 10 to 15% by weight of waste residues. , 10 to 30% by weight of soil (soil), such as masato or ocher or clay, 4 to 5% by weight minerals, 6 to 10% by weight of vegetable residues are mixed and stirred in the primary mixture at room temperature for 30 days It is a feature of the present invention to produce vegetation soil.

In the present invention, by mixing and stirring sludges such as sewage sludge from which heavy metals are selected and incineration residues such as paper sludge and paper burning materials or general incinerators, the first mixture is prepared, followed by soil such as masato, ocher or clay. ) And vegetation soil prepared by adding mineral substances such as limestone, vermiculite and zeolite and vegetable residues such as sawdust, rice husk and wood flour into the primary mixture, mixing and stirring again, and fermenting and aging. The explanation is as follows.

1. Mixing and stirring sludge, paper sludge and incineration residue

35 to 40% by weight of sludge such as sewage sludge without heavy metals, 15 to 20% by weight of paper sludge, 10 to 15% by weight of incineration residues such as paper burning materials or general incineration, and then stirred to mix evenly 1 Prepare a tea mixture.

There are hundreds of kinds of wastes generated by industrial development due to industrial development, and the disposal of wastes is a serious problem in socio-economics, and the recycling of these wastes is urgently needed. Among these industrial wastes, wastewater treatment or sewage treatment Sludges generated at the time of production contain a large amount of organic matter, so it is easy to grow microorganisms.

When the sludge contains heavy metals, secondary contamination of the soil by heavy metals occurs, so that the germination rate and growth of native plants are low, so the selected ones without heavy metals should be used.

The paper sludge uses paper sludge generated in the papermaking process of the paper company and increases the adhesion of the vegetation soil composition to serve as a support layer of the plant.

2. adding soil, minerals and plant residues to the primary mixture

10 to 30% by weight of soil (soil), such as masato, ocher or clay, and 4 to 5% by weight of mineral materials such as limestone, vermiculite, and zeolite to supplement the physical properties of vegetation soil in the prepared primary mixture In order to increase the water drainage, and to become a sustainable nutrient to plants, as well as to increase the temperature of the land and to prevent soil nematodes, 6 ~ 10% by weight of vegetable residues such as sawdust, rice hull, and wood flour are mixed and stirred.

The soil (soil), such as Masato is to improve the physical properties such as breathability, drainage, etc. of vegetation soil is used to remove the particle size evenly and may be used by mixing masato, ocher, clay.

Mineral materials such as limestone, vermiculite, and zeolite are mainly used as horticultural soils, and have excellent preservative and conservative power, and increase the germination rate and growth of plants by smoothly breathing the vegetation soil.

Sawdust, rice hulls, wood flour, etc. are evenly ground, and a mixture thereof may be used if necessary.

3. Fermentation aging stage

The mixed and stirred secondary mixture is fermented and aged at room temperature for approximately 30 days.

Vegetable residues such as sawdust and sludges of the mixture are fermented and aged to increase the germination and growth rates of plants when using vegetated soil.

<Example>

40% by weight of sewage sludge, 20% by weight of papermaking sludge, and 15% by weight of papermaking material are mixed and stirred to be mixed evenly to prepare a primary mixture.

Masato 12% by weight, vermiculite 5% by weight, sawdust 8% by weight was added to the mixture again, stirred and fermented at room temperature for 30 days to complete the vegetation soil.

The vegetation soil of the present invention prepared as described above has low cohesiveness and good physical properties, and has high moisturizing power, thus increasing the germination rate of plant seeds, shortening the germination period, and smoothly supplying nutrients during growth. It is possible to give sufficient vegetation conditions even if the soil is cut on slope or rock incision, and it can be used as a landscaping manure as well as to achieve early settlement of natural vegetation in the construction area. As a result, the construction equipment is also compact and lightweight, thereby simplifying the construction and reducing the cost.

Claims (2)

In vegetation soil, 35 to 40% by weight of sludge, such as sewage sludge from which heavy metals are selected, 15 to 20% by weight of paper sludge, and 10 to 15% by weight of waste residues are mixed and stirred to prepare a primary mixture, and 1 It is prepared by mixing and stirring 10-30% by weight of soil (soil) such as masato, ocher or clay, 4-5% by weight of minerals, and 6-10% by weight of vegetable residues, followed by fermentation and aging for about 30 days. Vegetated soil using sludge. In the manufacturing method of vegetation soil, primary mixture is prepared by mixing and stirring 35-40 wt% sludge such as sewage sludge from which heavy metals are selected, 15-20 wt% of paper sludge, and 10-15 wt% of waste residues, 10 to 30% by weight of soil (soil), such as masato or ocher or clay, 4 to 5% by weight minerals, 6 to 10% by weight of vegetable residues are mixed and stirred in the primary mixture for fermentation for about 30 days. Method for producing vegetation soil using sludge, characterized in that.