JPS5813120B2 - Method for producing soil conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing a soil conditioner using waste water from washing hair after collecting grease.

In conventional wool spinning, as shown in FIG. 1, the washing waste was concentrated and disposed of by being incinerated after collecting the grease.

However, incineration requires a large amount of fuel, and the cost of maintaining the incinerator is high.

On the other hand, even if it were to be disposed of, the incineration residue had a pH of 10 or more, which meant that disposal sites were limited from the perspective of pollution prevention, and the disposal cost was high.

In view of this point, the present invention has been achieved as a result of diligent efforts to find a way to effectively utilize the hair washing liquid after collecting grease, instead of simply discarding it.

That is, the present inventor found that the hair washing waste after collecting grease still contains some grease and contains organic matter and elements that are highly fertilizing. The present invention was achieved by devising ways to increase the plant growing environment and fertilization efficiency without causing soil to wither.

In order to achieve this object, the present invention has the following configuration.

That is, the present invention collects crease from hair washing waste, concentrates the hair wash waste after collecting grease, neutralizes it with acid, adds sawdust etc. to this, kneads it, and then adds fermentation bacteria. This is a method for producing a soil conditioner, which is characterized by fermenting and composting, adding a binder and water, kneading, granulating, and drying.

The present invention will be explained below with reference to the drawings.

Figure 2 is a process diagram showing the outline of the present invention. In the figure, the hair washing liquid from which grease has been recovered by acid fractionation, centrifugation, foaming, distillation, etc. has a water content of 98%. From 65
It must be concentrated to % moisture.

This is to facilitate processing.

This is because if the moisture content is less than 65%, kneading with sawdust etc. will not be successful, while if the moisture content exceeds 98%, the subsequent process will be hindered.

Add the acid at a rate of 0.1 to 0.3% w/w to the concentrate.

The purpose of this addition of acid is to neutralize and provide a final fertilizer effect to promote biodegradation.

In this sense, phosphoric acid is preferred. In addition to phosphoric acid, other acids such as hydrochloric acid and sulfuric acid may also be used, but they will have an adverse effect on the finished potting soil.

Next, 20-50 kg (20-50 kg) of sawdust etc. is added to the neutralized product per 100 kg of concentrated liquid for aeration, adsorption, and deodorization.
0 w/w%) and kneaded.

Here, sawdust, etc. refers to sawdust, crushed rice husks, wool scraps, etc.

Further, 0.1 to 10% by weight of fermentation bacteria is added to promote composting.

Possible fermentation bacteria include Pseudomonas and Todospirum.

Then, 2 to 6 w/w% and 60 to 120 w/w% of binder and water are added to the compost and kneaded.

The purpose of adding a binder and kneading is to properly form granules and maintain their formation.

The size of the particles can be adjusted by changing the amount of binder added and adjusting the rotation speed of the dryer blades.

An example of a binder is C. M. A material such as C that improves viscosity, is water-soluble, is harmless to plant growth, and has a granulating effect is used.

Thereafter, the product is granulated and dried, and it is preferable to use a dryer with a horizontal blade structure because the granulation and drying can be carried out at one time.

Since this granulation drying is performed over an open flame, it has the effect of making the soil conditioner sterile.

As described above, according to the method of the present invention, when the pH is around 7, nitrogen,
A soil conditioner with aggregate particle structure that has a well-balanced phosphoric acid and potassium content and has a fertilizing effect can be obtained.

This soil conditioner also has good air permeability, excellent water retention and fertilizer retention, and is sterile.

Since it is sterile, the germination of plant seeds is improved and the environment for plant growth is improved.

In addition, it is cheaper than commercially available culture soil, and in particular, this soil conditioner is effective as a culture soil for potted plants, flowers, and plants. Concentrate water to 70% w/w% and reduce phosphoric acid concentration to 35% to 0.6
7 w/w% is added to neutralize it, and an equal volume of sawdust is added thereto and kneaded to give a moisture content of 50 to 60%.

Fermentation bacteria extracted from chicken manure as seeds are added as a fermentation accelerator to make fermentation compost, and a binder (C
．． M. When 3 to 5 w/w % of C) and 100 w/w % of water were added to the compost and kneaded and granulated and dried, a soil conditioner with an average particle size of 3 m/m was obtained.

The physical properties of this soil conditioner are as follows.

The analysis method is based on the Fertilizer Analysis Method of the Agricultural Technology Research Institute of the Ministry of Agriculture, Forestry and Forestry.

pH 7.2 Moisture 4.8% Total amount of nitrogen 2.38% Total amount of phosphoric acid 1.37% Total amount of potassium 1.50% Alkali content 2.46% Bitterness ± 0.73% Loss on ignition 92.90% Like this A plant (dahlia mignon, impatiens) culture test was conducted using the soil conditioner according to the present invention obtained in the following manner.

Test conditions; Soil mixture... 3 types (Arakida soil + mulch) 100% (Arakida soil + mulch) 75% 10 soil conditioner 25% (Arakida soil + mulch) 67% + soil conditioner 33% Top dressing...Hyponex 1000 Double solution every 7 days, every 14 days, every 21 days Plants... Dahlia mignon (bulb grass) Impatiens (annual plant) Seeds were directly sown and thinned out using 5-inch deep pots.

Sowing date and time...April 12, 1952, 18:00 (rainy day) Experiment combination and experiment number... The results of the tests under the above conditions are shown in Tables 1 and 2, respectively.

As is clear from Tables 1 and 2, when the soil conditioner according to the present invention is used, compared to when it is not used,
The number of flowering days was considerable, the maximum leaf length was long, and the number of crowns was large for Dalya Mignon.

As described above, it has been revealed that the soil conditioner according to the present invention has a large influence on the growth of plants.

[Brief explanation of drawings]

FIG. 1 is a diagram showing a conventional treatment process for washing waste water, and FIG. 2 is a diagram showing a process of the method of the present invention.

Claims (1)

[Claims] 1 Collect grease from the hair washing liquid, concentrate the hair washing liquid after collecting the grease from 98% moisture to 65% moisture, neutralize with acid, add sawdust etc. to this and knead it, A method for producing a soil conditioner, which comprises adding fermentation bacteria to ferment and compost, adding a binder and water, kneading, and aseptic granulation and drying.