JPH1017385A - Treatment of residual liquid of marine product processing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To process the residual liquid of marine product processing at a low cost without treating this liquid with a waste liquid treating device, without releasing the liquid by diluting the liquid with water and without asking for a crude refuse treating trader and particularly to recover and recycle the components included in the residual liquid of marine product processing and components of lime as a soil reforming material. SOLUTION: This method for treating the residual liquid of marine product processing comprises executing rapid dehydration by adding 8 to 12% (by weight) crude limestones, etc., to the residual liquid 3 of marine product processing admitted into soil, such as mountain sand 2, or the soil, such as mountain sand 2 built up on the ground surface of concrete 1, etc., and bringing the crude limestones, etc., and the moisture in the residual liquid 3 of marine product processing into reaction. The residual liquid of marine product processing is then rested for 12 to 24 hours to allow the residual moisture to evaporate and is subjected to natural dehydration by absorbing the moisture into the soil, such as mountain sand. The total amt. of the soil, such as mountain sand, and the residual liquid of marine product processing subjected to the dehydration and then mixed, by which the soil improving material is obtd.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for treating a marine product processing residue generated when processing marine products, for example, a marine product processing residue generated when processing marine products such as kamaboko and sausage. It is about.

[0002]

2. Description of the Related Art Most of the marine processing residue generated when processing fish products such as kamaboko and sausage as described above is a washing waste liquid used for cleaning crushed fish. The waste liquid contains a large amount of residue such as fish meat, internal organs, blood, etc., and is extremely contaminated with organic contaminants (BOD 10,000 to 16000 ppm). If the water is discharged into sewage or rivers without discharge, it may cause pollution problems (smell, red tide or abnormal occurrence of algae, death of fish, etc.) in sewage or rivers. Have been.

[0003] Therefore, when the effluent is discharged into sewage or rivers as a waste liquid, the dirt of the marine processing residue is removed by a waste liquid treatment device such as a microorganism treatment device and the cleaning liquid is discharged, or the marine product is discharged. The dirt of the processing residue is diluted with a large amount of water and discharged, which requires a large amount of equipment and equipment costs or waste liquid treatment cost.In the latter case, the amount of waste liquid, which is waste, will increase significantly. There were drawbacks such as inviting.

It is also conceivable to ask a garbage disposal company to dispose of this marine processing residue, but it is necessary to pay a large amount of disposal cost to the garbage disposal company, and the waste liquid treatment cost is high. It is the same as in the case of garbage, and recently, as in the garbage war, securing a place for dumping waste has become a problem, and it is becoming difficult to dispose of it as waste.

Further, in recent years, there has been a keen demand for effective use of resources, but despite the fact that the marine processing residue contains an active ingredient, it is not used as a resource at all, Various uses have been considered in the fisheries industry, but no appropriate use has yet been developed.

[0006]

DISCLOSURE OF THE INVENTION The present invention relates to a sewage treatment system for treating sewage or river water by processing a marine processing residue liquid generated during processing of a marine product. Effluent, and without causing pollution problems such as pollution of sewage and rivers by the marine processing residue, and without asking the garbage disposal company to dispose of the marine processing residue. The purpose is to easily dispose of the apparatus at low equipment cost and processing cost.

[0007] In particular, the present invention relates to components such as soluble organic matter, nitrogen oxides, phosphoric acid and potassium contained in the marine processing residue, and lime added when dehydrating the marine processing residue. The components such as magnesium and calcium contained in are mixed with soil such as mountain sand and collected as soil improvement material.
The purpose is to reuse and effectively use it as a resource.

[0008] Further, the present invention relates to a component such as soluble organic matter, nitrogen oxides, phosphoric acid and potassium contained in the marine processing residue, and lime added when dehydrating the marine processing residue. An object is to mix a component such as magnesium and calcium contained in the soil with soil such as mountain sand to improve the soil itself to a state suitable for growing crops.

[0009]

SUMMARY OF THE INVENTION The present invention relates to a method for treating a marine processing residue, which contains 8 to 12% of coarse limestone or the like in the marine processing residue after flowing into soil such as mountain sand. (Weight), and the limestone or the like is allowed to react with water in the marine processing residue to perform rapid dehydration. Then, the marine processing residue is allowed to stand for 12 to 24 hours to evaporate residual water and remove the residual water. It is characterized in that after it is absorbed into soil such as sand and naturally dehydrated, the entire amount of soil such as mountain sand and the dehydrated marine processing residue are mixed to form a soil conditioner.

Further, according to the present invention, in the above-mentioned method for treating a marine processing residue, the marine processing residue is caused to flow into a soil such as a mountain sand in a reservoir-like shape raised on the ground such as concrete. 8 to 12 (by weight) of coarse limestone or the like is added to the test solution, and the coarse limestone or the like is reacted with water in the fishery processing residue to perform rapid dehydration.
After leaving for 24 hours, evaporating the residual moisture and absorbing it into soil such as mountain sand to perform natural dehydration, the total amount of soil such as reservoir sand and the dehydrated fishery processing residue liquid are removed. It is characterized by being mixed into a soil conditioner.

The details of the present invention will be described below.
For example, as described above, most of the marine processing residue generated when processing kamaboko is the cleaning waste liquid used when filtering and cleaning fish used as the raw material for kamaboko. Contains a large amount of residue such as fish meat, internal organs, and blood.

[0012] However, the marine processing residue liquid contains a large amount of soluble organic substances, nitrogen oxides, phosphoric acid, potassium, etc., though it is severely stained by various organic contaminants. Is a fixed bed height (3
0cm above) is allowed to flow at a predetermined rate in a mountain sand filled while maintaining, this fish processing residue査液coarse limestone 8% to 12% (by weight) was added, as shown in the following chemical formula, Ca + 2H ₂ O → Ca (OH) ₂ + H ₂ Coarse limestone reacts with the water in the marine processing residue to rapidly dehydrate the water in the marine processing residue (water content 40 to 50).
%).

[0013] Next, 12? ~ 36? After leaving for a while, the residual water in the marine processing residue is evaporated and absorbed into the mountain sand to be naturally dehydrated (moisture content: 20-30%). The dehydrated fishery processing residue is uniformly mixed with the entire amount of mountain sand (water content 10 to 20).
%) And dry it with little odor.

[0014] In addition, in the dry substance having little odor, components such as soluble organic substances, nitrogen oxides, phosphoric acid and potassium which are originally contained in the marine processing residue are added when performing rapid dehydration. It is recovered as a high quality and organic soil conditioner containing components such as magnesium and calcium contained in the coarse limestone.

In the present invention, the reason why the seafood processing residue is allowed to flow into the mountain sand is that the mountain sand has a high absorbency for water in the seafood processing residue and can be obtained at low cost. Also,
Any type of soil can be used as long as it has high absorbency for water in the fishery processing residue and can be obtained at low cost.

The ratio between the marine processing residue and the mountain sand soil is as follows:
The composition of the marine processing residue, the degree of dirt, the moisture content or the type of mountain sand or other soil, etc. are determined as appropriate. The ratio is desirably in the range of 50 to 60% (weight).

Further, in the above-mentioned case, the mountain sand is filled into the open processing tank made of concrete or the like while maintaining a certain layer height. However, the open processing tank made of metal or the like is filled with the mountain sand. It may be filled while maintaining a certain layer height, and in some cases, a large hole is dug in the normal ground, a rubber sheet is laid, and mountain sand is filled with maintaining a certain layer height in it. It doesn't matter.

Coarse limestone is added to the marine processing residue liquid because the coarse limestone reacts with the water in the marine processing residue liquid to rapidly dehydrate the marine processing residue liquid, and the soil improving material as the final product is used. The purpose is to provide potassium and calcium components as active ingredients of limestone, limestone, lime, etc., other than coarse limestone, which can quickly dehydrate marine processing residue and provide magnesium and calcium components to soil improvement materials If so, whatever may be added.

The reason why the addition ratio of coarse limestone to the marine processing residue is 8 to 12% (by weight) is that the addition ratio is 8%.
If the amount is less than (weight), rapid dehydration of the marine processing residue by the coarse limestone is insufficient, and the magnesium and calcium components in the soil amendment are insufficient, and the addition ratio is 12% (weight). If the temperature exceeds the above, rapid dehydration of the marine processing residue by the coarse limestone does not proceed, and the proportion of magnesium and calcium components in the soil amendment becomes excessive, although it takes time.

[0020] The rapidly dehydrated fishery processing residue liquid is 12 to 24
Leaving for an hour means that if the leaving time is less than 12 hours,
This is because the residual water in the rapidly dehydrated fishery processing residue is not sufficiently adsorbed to mountain sand and does not evaporate sufficiently, resulting in incomplete spontaneous dehydration, and the standing time exceeds 24 hours. This is because, in proportion to the time, the residual moisture in the fishery processing residue is not absorbed by the mountain sand and does not evaporate.

An example of the present invention will be described with reference to the drawings.
As shown in FIG. 1, a pile 2 carried by a dump truck is piled up on a surface of concrete 1 and the piled up pile 2 is shoveled to a certain layer height (3
After digging into a reservoir having a size of 0 cm or more, the marine processing residue 3 from the Kamaboko processing plant is caused to flow into the reservoir-shaped mountain sand 2 by vacuum so as not to overflow.

Next, 8 to 12% (by weight) of coarse limestone 4 is added to the marine processing residue 3, and the coarse limestone 4 is reacted with water in the marine processing residue 3 to perform rapid dehydration. The processed marine processing residue 3 is left for 12 to 24 hours to evaporate residual water in the marine processing residue and absorb it into mountain sand, etc. for natural dehydration. By the synergistic action of this rapid dehydration and natural dehydration, And dewater the water in the marine processing residue.

In the above-mentioned rapid dehydration and natural dehydration,
Since the sand 2 is raised on the surface of the concrete 1 to increase the area, the amount of coarse limestone added to the marine processing residue 3 can be reduced to 8 to 12% (weight), and rapid dehydration can be performed. It is possible to reduce the standing time of the performed fishery processing residue 3 to 12 to 24 hours.

In the case described above, the mountain sand 2 is
It was formed in the shape of a reservoir with a constant layer height by raising it on the surface, but in addition to this, a large hole was dug in the normal ground, a rubber sheet (not shown) was laid, and the mountain sand 2 was placed in it. It may be formed in a reservoir shape while maintaining a certain layer height.

In some cases, a large hole is dug in the mountain sand 2 or other soil to form a reservoir (no rubber sheet is laid), into which the fishery processing residue 3 flows and coarse limestone is added. 4 and simultaneously performing rapid dehydration and spontaneous dehydration of the marine processing residue 3, the mountain sand 2 and other soil, the marine processing residue 3, and the coarse limestone 4 are uniformly mixed. The soil itself may be improved to a state suitable for growing crops.

[0026]

[Example 1] As shown in Fig. 1, approximately 5 piles of sand transported by a dump truck were placed on the concrete site adjacent to the Kamaboko processing site.
After excavating 00 kg, the excavated mountain sand was excavated with a shovel into a reservoir having a layer height of about 50 cm with respect to the concrete surface, and the remaining fishery processing residue stored in the Kamaboko processing plant in the reservoir-shaped mountain sand About 1000 kg of the liquid was introduced so as not to overflow.

10% (by weight) of coarse limestone is added to the marine processing residue after flowing into the mountain sand, and the coarse limestone is allowed to react with the water in the marine processing residue to form a marine processing residue. The water content of the marine processing residue was reduced to about 50% by rapidly dehydrating the water of the liquid.

This rapidly dehydrated fishery processing residue is added to 22
After standing for a while, the residual water in the marine processing residue is evaporated and absorbed by mountain sand to be naturally dehydrated, so that the marine processing residue becomes muddy and has a water content of about 30.
%.

Next, the marine processing residue obtained by synergistically dehydrating water by the above-mentioned rapid and natural dehydration is uniformly mixed with the entire amount of mountain sand piled up in a reservoir, thereby obtaining the marine processing residue. Becomes earthy and has a water content of about 1
It was reduced to 0%, and the dried product was about 1000 kg without much odor.

When the dried product was analyzed, its components were as follows. Nitrogen oxide 0.27% Phosphoric acid, 1.17% Potassium 0.16% Magnesium, 0.90% Calcium 63.78% The components described above are effective as high quality organic soil conditioners. Therefore, it was collected as a soil conditioner.

[0031]

According to the present invention, it is possible to dilute the marine processing residue with a large amount of water without discharging the marine processing residue with a wastewater treatment apparatus and discharging it to sewage or rivers. In addition, without having to ask a garbage disposal company to dispose of the fishery processing residue, the water in the fishery processing residue is dehydrated synergistically and efficiently by rapid dehydration and natural dehydration, and The residual liquid has an excellent effect that it can be easily treated with low equipment cost and processing cost, and has an advantage that the residual liquid for processing fishery does not cause a pollution problem such as sewage or river pollution.

Further, according to the present invention, the soluble organic substances, nitrogen oxides, and the like originally contained in the marine processing residue liquid are not wastefully discarded without wastefully discarding the marine processing residue liquid.
The components such as phosphoric acid and potassium, and the components such as magnesium and calcium contained in the lime added when the seafood processing residue is rapidly dehydrated are mixed with soil such as mountain sand to improve the soil conditioner. By taking in as an active ingredient, recovering and reusing it as a high-quality organic soil conditioner, it is possible to achieve an effect meeting the demands of today's times of effectively utilizing it as a resource.

Further, according to the present invention, the soluble organic substances, nitrogen oxides, phosphorus, and the like originally contained in the marine processing residue liquid are not wastefully discarded without waste. Components such as acid and potassium, and components such as magnesium and calcium contained in lime added when rapidly dewatering the marine processing residue are mixed with soil such as mountain sand, and the soil itself is used for crop production. It is possible to improve the condition suitable for breeding and to achieve an excellent effect of harvesting high quality crops at a high yield.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing a state in which mountain sand is piled up in a reservoir shape on a concrete surface, and a fishery processing residue is allowed to flow into the reservoir to be dehydrated.

[Explanation of symbols]

 1 Concrete 2 Mountain sand 3 Fish processing residue 4 Coarse limestone

Claims (2)

[Claims] 1. A marine processing residue generated when processing marine products flows into soil such as mountain sand, and 8 to 12% (by weight) of coarse limestone is added to the marine processing residue. Coarse limestone and the like and the water in the marine processing residue are reacted to perform rapid dehydration, and then the rapidly processed marine processing residue is subjected to 12-
After standing for 24 hours, the residual water in the fishery processing residue is evaporated and absorbed into the soil such as mountain sand. After natural dehydration, the total amount of the soil such as mountain sand and the dehydrated fishery processing residue are removed. A method for treating fishery processing residue liquid which is mixed with a buffer solution to form a soil conditioner. 2. A pile of soil such as mountain sand is piled up on the ground of concrete or the like to form a reservoir, and marine processing residue generated when processing marine products flows into the reservoir-like soil of mountain sand or the like. 8 to 12 (by weight) of coarse limestone or the like is added to the marine processing residue, and the limestone or the like reacts with the water in the marine processing residue to perform rapid dehydration. The processing residue is left for 12 to 24 hours to evaporate the residual water in the marine processing residue and absorb it into soil such as mountain sand to perform natural dehydration. A method for treating a marine processing residue liquid as a soil conditioner by mixing the whole amount of the above with a dehydrated marine processing residue liquid.