JPH05207816A - Production of gradated culture soil of microorganism treatment of water cleaning cake - Google Patents

Abstract

PURPOSE:To obtain highly nutritive gradated culture soil having a low water content and full activity by blending water cleaning cake with an organic substance such as bark in a specific state. CONSTITUTION:Water cleaning cake not injected with a chemical is ground into granules, the granular water cleaning cake 2 is mixed with a finely ground organic substance 3 such as bark, further blended with animal or vegetable containing fertilizer. Water content of the culture soil is reduced by fermentation heat of aerobic microorganisms.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is a water purification cake mainly composed of a chemical-free water purification cake obtained by mechanically dehydrating and solidifying water purification sludge generated when water of a water purification plant is purified. The present invention relates to a method for producing a microbial treated blurred culture soil.

[0002]

2. Description of the Related Art Conventionally, most purified water cakes have been disposed of as industrial wastes, and only a small portion thereof is used in the practical and test stages of agriculture. That is, vegetable and leaf vegetable cultivation soil, greenhouse cultivation facility soil, potted flower soil,
Ornamental plant soil, paddy rice seedling soil, tree planting soil,
And, only a part of them is used as grass soil, etc. or as a base material thereof.

[0003]

As described above, the conventional use of the water purification cake is limited to only a part, and most of the water purification cake is disposed of on the premises of the water purification plant or in a specific place. However, there is a problem that treatment and disposal of sludge requires a large amount of cost, and it is difficult to acquire a site for disposal in the future. On the other hand, the purified water cake was originally made in forests, green spaces,
Since a part of the soil such as farmland has been carried by river water and its safety and effectiveness are extremely high, it is also important to actively return it to green spaces and farmland from the viewpoint of material circulation. Most reasonable and reasonable.

The present invention is an invention resulting from a search for an ideal way of using such a purified water cake. ○ 1 To reduce the water content of non-chemically treated water purification cake discharged from the water purification plant by mixing it with an organic material with low water content without using costly methods such as heat drying until it can be used as plant culture soil. With the goal. ○ 2 Furthermore, the objective is to add animal organic fertilizers and plant organic fertilizers, ferment them, and prepare a culture soil in which the water content is adjusted to about 65% by the heat of fermentation. ○ 3 In addition, by adding animal organic fertilizers and plant organic fertilizers, the purpose is to promote the activity of microorganisms and to create high-value-added, high-nutrition dim culture soil.

[0005]

In order to achieve the above object, the present invention is an organic material such as bark (bark) in which the water content is adjusted to 55 to 60% with respect to the purified water cakes 2 and 3 which are generally high in water content. Is mixed in a ratio of 1 to lower the water content of the purified water cake.

[0006] Further, by adding and mixing animal-fertilizing organic fertilizers such as fermented chicken manure, pig manure and bone meal, and vegetable organic fertilizers such as oil meal and rice bran, the activity of effective microorganisms such as bacteria and actinomycetes is promoted, The purpose is to suppress the activity of harmful bacteria by diversifying and enriching the microflora and the lytic action of actinomycetes, and to create a high-enriched obscure culture soil.

Another object of the present invention is to create an ideal, easy-to-handle, blurred culture soil with a water content of about 65% by cutting back the fermentation heat and the sediment by the addition of the above-mentioned animal and plant organic fertilizer.

[0008]

The microbial treated obscurate culture soil of the purified water cake of the present invention has not only an effect as a culture soil particularly in agricultural use, but also the activity of the above-mentioned effective microorganisms can remarkably suppress the continuous crop damage. Further, its action as a culture soil is sufficiently effective as a growth base material for planting trees, slope greening with turfgrass and spraying of wildflowers, and its range of use is wide.

[0009]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

Reference numeral 1 shown in FIG. 1 is a plate-shaped water purification cake which is discharged from a water purification plant and is chemical-free. 2 shown in FIG. 2 is a purified water cake that has been crushed by a crusher into particles. As shown in FIG. 3, granular water cake 2 and finely crushed bark (bark) 3 are mixed in a mixing facility 4 to reduce the water content of the water cake 2.
Then, the animal and plant organic fertilizer 5 is added and mixed. As shown in FIG. 4, the culture soil mixed in FIG. 3 is deposited in the fermenter,
If appropriate cut-back treatment is carried out to promote the activity of microorganisms and further reduce the water content by the heat of fermentation, nitrogen content 0.4%, phosphoric acid 0.4%, Kari 0.
About 2% of blurred culture soil 7 is produced.

[0011]

As described above, according to the present invention, the following effects can be obtained. Conventionally, most of the water-purified cake was discarded as industrial waste, but by adding and mixing organic materials and animal and plant organic fertilizers, it has a low water content and is easy to handle. You can make soil.

The purified water cake used in the present invention is not based on a chemical treatment method such as lime treatment, but based on a non-chemical treatment method, so that it is safe and effective without causing alkali damage to plants. It is something.

[0013] Further, the application range is wide, such as agricultural use, planting of trees, growth base material for slope greening and spraying of wildflowers, and the like.

Conventionally, most of the water-purified cake has been discarded as industrial waste, so that it can be supplied as an inexpensive product.

[Brief description of drawings]

FIG. 1 is a perspective view of a purified water cake discharged from a water purification plant according to the present invention.

FIG. 2 is a perspective view of a granular state obtained by crushing the purified water cake according to the present invention.

FIG. 3 is an explanatory view showing an embodiment in which granular water cake according to the present invention and finely crushed bark (bark) are mixed in a mixing facility, and animal and plant organic fertilizer is added and mixed.

FIG. 4 shows the mixed culture soil according to the present invention placed in a fermenter,
It is explanatory drawing which shows one Example which accumulates and ferments.

FIG. 5 is a perspective view of the bag-filled purified water cake microbial-treated blurring culture soil according to the present invention.

[Explanation of symbols]

 1 Plate-shaped water purification cake 2 Granular water purification cake 3 Organic materials such as bark (bark) 4 Mixing equipment 5 Animal and plant organic fertilizer 6 Fermenter 7 Bags of water purification cake Microbial treatment Soil culture soil

Claims (1)

[Claims] 1. A chemical-free water purification cake obtained by mechanically dehydrating and solidifying water purification sludge generated when purifying raw water in a water purification plant is crushed into particles, and water content is adjusted and plant culture is carried out. After mixing finely crushed organic materials such as bark (bark) for soil improvement suitable for soil, animal and plant organic fertilizers are added and mixed to give nutrients suitable for the growth of aerobic microorganisms. A method for producing a microbial treatment slurp culture soil of a purified water cake, which comprises producing a highly nutrient slurp culture soil by reducing water content by fermentation heat of aerobic microorganisms.