JPH0899074A - Production of soil for tree-planting construction from organic sludge - Google Patents

Abstract

PURPOSE: To produce soil for tree-planting construction by natural fermentation by mixing pulp incineration ash, PM Zai (Registered trade mark) or the like with org. raw sludge and accumulating the resulting mixture for a definite period to charge the same in a fermentation bag and storing the bagged mixture before grinding and aerating the same. CONSTITUTION: Pulp incineration ash 2, PM Zai 3, wood vinegar 4, fertilizer 5 and carbonized wood chips 6 are added to raw sludge 1 to be stirred and mixed by a stirrer 7 and the resulting mixture 8 is accumulated for 2-3 days to be adjusted in moisture. This accumulated matter 9 is successively fed to a crusher 11 by a belt conveyor 10 to be crushed and the crushed matter is charged in a fermentation bag 12 having proper air permeability to be subjected to secondary fermentation for 4-5 days. Further, the mixture 8 in the fermentation bag 12 is supplied to a crusher 16 and, after foreign matter is removed, the crushed mixture is fed by a belt conveyor 18 to be received in a delivery bag 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing soil for greening work from organic sludge, which is generated from a public sludge treatment plant or a household without using any mechanical equipment such as a heating machine and a fermenter. By mixing carbonized wood chips with voids, water retention and deodorizing function and wood vinegar with other mixed materials into bags and sludge and excrement to be saponified, and then naturally fermenting them under certain conditions. The purpose is to make it possible to obtain soil for various types of greening work.

[0002]

2. Description of the Related Art The applicant of the present application has previously provided a recycling greening method called a PMC (pie-emc) method (see Japanese Patent Publication No. 4-45613 and Japanese Patent Application Laid-Open No. 4-261914). The PMC method is a method of mixing organic waste such as public sewage sludge and livestock dung with charcoal powder, or organic waste and incineration ash generated from various industries such as incineration ash of pulp slag produced during pulp production. Fermented to produce an organic "growth base material", and using this growth base material and a plant fertilizer "Piemzai (registered trademark)" whose main raw material is konjak fly powder, This is a method of forming a growth base for plants in greening work using the adhesive material that it has.

[0003]

The PMC method described above substitutes the black soil, mountain sand, etc. used as the vegetation base material in the conventional method, and also contains a large amount of fertilizer. Furthermore, it is useful as a modern construction method that prevents the destruction of nature by collecting sand and recycles waste. On the other hand, in the above PMC method, in order to promote fermentation of organic waste,
Poor adjustment of water content affects the period of completion of fermentation. In the above conventional method of the applicant of the present application, a kiln type fermentation machine is always used. Then, after the fermentation treatment, it is necessary to deposit in the deposition site for a period of 2 to 3 months until it is matured. for that reason,
Expensive capital investment to install the fermenter and fuel cost for sending hot hot air into the fermenter are required, and it takes about 2 months at the earliest to obtain a growth base material that can be used as compost. Since it takes a long time, it is often feared that you will not be able to meet the demand for a large amount suddenly unless you stock a considerable amount.

[0004]

Therefore, the present invention is provided to solve the problems of the conventional method and to achieve the object of the invention. That is, the first aspect of the present invention is a method for producing soil for greening work from organic sludge, in which food residues,
Organic sludge such as sewage sludge, human waste sludge, papermaking sludge, etc., pulp incineration ash in a stirrer, piemzai, wood vinegar, fertilizer,
After adding carbonized wood chips and stirring, add and mix, deposit this mixture for a certain period of time, then put it in a fermentation bag with a proper air permeability through a crusher and leave it for a predetermined fermentation period. The mixture contained in the fermentation bag is put into a crusher, and foreign substances are removed by a sieve, and then a predetermined amount is contained in the shipping bag. The second aspect of the present invention is
In the method for producing a soil for greening work from organic sludge according to the first aspect of the present invention, as a raw material of carbonized wood chips, residual materials of lumber, thinned wood of cedar and pine, pine pile material, and disposal by demolition of wooden structures It uses wood, fallen wood, bark of imported raw wood, a large amount of discarded chopsticks and other discarded wood. A third aspect of the present invention is the method for producing soil for greening work from the organic sludge according to the first aspect, wherein the fermentation bag has a size of 1 m in diameter, a storage capacity of 1 m ^3, and a pair of hanging parts on the upper part of the bag. It has a hand.

[0005]

[Function] The pulp incineration ash immediately after being discharged from the incinerator of the paper mill has high-temperature self-heat of about 300 ° C. Then, the temperature of the incinerated ash that has been exposed to the outside air after being discharged is lowered, and a shower is applied to the ash to lower the temperature, and the incinerated ash is transported by a truck at about 60 to 80 ° C. and transported to the manufacturing plant. The volume ratio of sewage sludge is about 1: 1.
In addition to this, piemzai, wood vinegar, fertilizer (high control
A) Add fine carbonized wood chips in appropriate proportions and mix. As a result, the sludge itself is raw and untreated, and thus produces a furious odor or offensive odor, but the deodorizing function of the pulp incineration ash removes a considerable amount of odor. Then, the mixture that has been sufficiently mixed is temporarily deposited, and the water content in the mixture is adjusted to a decreasing tendency. Then, it is packed in an air-permeable fermentation bag, placed in a fermentation place, and a sheet is put on for a predetermined curing period.
As a result, the fermentation heat is prevented from being diffused to the outside, and the outside air is appropriately permeated and supplied into the bag body to assist the promotion of fermentation and reach full maturity. After a sufficient fermentation period has passed, the mixture is removed from the fermentation bag again, subjected to aeration to expose it to the outside air, and then refilled into a shipping bag.

[0006]

Embodiments of the present invention will now be described with reference to the drawings.
FIG. 1 is a schematic side explanatory view of a process for producing soil for greening from organic sludge according to the present invention. In the figure, reference numeral 1 is an organic raw sludge such as public sewage sludge sent to a sludge treatment plant or human waste sludge, and 2 is a pulp incineration ash, which exerts the functions of deodorizing the raw sludge and adjusting the water content. No. 3 is piemzai, which is pure plant, non-polluting and plays a role of fertilizer and adhesive.
4 is wood vinegar, and this liquid has a function of deodorizing the sludge mixture and promoting fermentation. 5 is a fertilizer, and a high control product is used. 6 is a finely crushed carbonized wood chip. 7 is a stirrer for stirring the above items 2 to 6, 8 is a mixture of organic sludge and the agitated product, 9 is a deposit in which the mixture is deposited, and 10 is a device for transporting the deposit to a predetermined place. Belt conveyor, 11 is a weighing machine,
Reference numeral 12 denotes a breathable fermentation bag for accommodating the transported sediment, which is formed by mesh-weaving a synthetic resin such as corrosion-resistant nylon or polypropylene into a bag. The bag has a diameter of 1 m and is set so that a capacity of 1 m ³ can be packed per bag. 13 is a sheet body that covers the fermentation bag 12 at a predetermined place for fermentation, 14 is a hopper that inputs semi-finished product soil that has been sufficiently fermented from the fermentation bag, and 15 is for conveying the semi-finished product soil from the hopper. Belt conveyor, 1
6 is a crusher for foreign substances, 17 is a sieve for separating foreign substances, 1
Reference numeral 8 is a belt conveyor for conveying the product soil, 19 is a weighing machine, and 20 is a bag for shipping. Specifically, the same bag as the fermentation bag is used.

[0007]

[Specific Example of Manufacturing Process] First, raw sludge 1 that emits an offensive odor and a bad odor from a public sludge treatment plant in a paper manufacturing plant is loaded on a large sludge collecting vehicle and transported to a manufacturing plant. The transportation amount per transfer is 12.5 m ³ (about 10 tons). On the other hand, the pulp incineration ash 2 generated during the papermaking process in a papermaking factory has a high-temperature self-heat of about 300 ° C. Then, the temperature of the incinerated ash discharged and exposed to the outside air gradually decreases. However, a shower is used to accelerate the temperature decrease and the temperature is lowered by about 60 to 70 ° to be carried out by a truck and temporarily accumulated in the manufacturing plant. . In addition, commercially available products are used for pie msai 3, wood vinegar 4, and fertilizer (high control) 5. Next, the carbonized wood chips 6 have a void effect less when they are powdered coal of particles, so the raw wood is carbonized by a carburizing machine and crushed to a maximum diameter of about 20 mm. Alternatively, raw wood is carbonized by a carburizing machine and crushed to a maximum diameter of around 20 mm. The reason why the maximum diameter of the chips is set to 20 mm or less is to use a nozzle of a mortar spraying machine when spraying a product soil, which will be a fermented product described below, on a slope, but when the injection port of the nozzle is about 30 mm or so. This is because it is possible to sufficiently pass through the injection port. In addition, as a raw material of carbonized wood chips,
The remaining materials of lumber, thinned wood of cedar and pine, pine stake, waste wood by demolition of wooden structures, fallen wood, bark of imported raw wood, a large amount of discarded disposable chopsticks and other waste wood shall be used. Then, in concrete mixing and blending, 12.5 m ^{3 of} organic raw sludge and 12.5 of pulp incineration ash 2 were mixed.
m ^3, peak - Emuzai 3 270 kg, pyroligneous 4 60 liters fertilizers 5 (High Control - Le) to 18 kg, the carbonized wood chips 6 and the rate of 2.5 m ^3. The work order is as follows. Pulp incineration ash 2, which has been introduced into the stirrer 7 and stirred at least at a temperature higher than the outside air and preferably around 40 ° C., piemzai 3, wood vinegar 4, fertilizer 5
And the carbonized wood chips 6 are added and stirred, the agitated product is added to the raw sludge 1, and the mixture is thoroughly mixed with a tire shovel, and the mixture 8 is deposited for 2 to 3 days to be contained in the mixture. After adjusting the water content to suit the fermentation conditions and acclimatizing the mixture by the primary fermentation, the sediment 9 is successively conveyed by the belt conveyor 10 and is crushed by the crusher 11 into a fermentation bag 12 having appropriate air permeability. Pack and store 4
~ Leave the secondary fermentation period for 5 days. At this time, since the fermentation bag is set to have a diameter of 1 m, the outside air from around the bag body penetrates into the inside through the bag body for about 50 cm to promote the fermentation. The mixture 8 contained in the fermentation bag 12 is applied to a crusher 16 and foreign substances are removed by a sieve 17, and then the belt 8 conveys the mixture, and the measuring device 19 measures 1 m ³ each and stores it in a shipping bag 20. To do.

[0008]

EFFECTS OF THE INVENTION Since the present invention has the above-mentioned constitution, it can be used for sludge and excrement of domestic waste generated from public sludge treatment plants or households without using any mechanical equipment such as a heater or a fermenter
Carbonized finely crushed wood chips with voids, water retention and deodorizing function and wood vinegar are mixed with other organic substances, and then naturally fermented under certain conditions to produce product soil for various greening works. can get. In addition, the above-mentioned carbonized wood chips do not use any regular lumber, and use the remaining lumber of lumber, thinned wood of cedar and pine, pine lumber, waste wood from demolition of wooden structures, felled wood, imported raw wood. Since bark, a large amount of discarded disposable chopsticks and other discarded wood are used, the processing cost thereof is extremely low, it is useful for recycling the waste wood, and the thinned wood can be effectively used. By mixing the carbonized wood chips with raw sludge, the carbonized wood chips serve as a cavity holding material during fermentation, which serves to promote fermentation, and adheres to the inside of the transfer hose when the nozzle is sprayed on the slope. Fine particle agglomerates can be removed to avoid material blockage in the transport hose. Moreover, when it is used as a soil for revegetation in slope construction, it is highly effective in retaining water, breathability, and tying materials, and it prevents bleeding due to rainwater and cracks due to drying, and construction with a mortar spraying machine. It is very effective because it helps to control the thickness of time.

[Brief description of drawings]

FIG. 1 is a schematic plan view showing a process for promoting fermentation of an organic sludge according to the present invention.

[Explanation of symbols]

 1 Raw sludge 2 Pulp incineration ash 3 Pemuzai 4 Wood vinegar 5 Fertilizer 6 Carbonized wood chips 7 Stirrer 8 Mixture 9 Sediment 10 Belt conveyor 11 Weigher 12 Fermentation bag 13 Sheet body 14 Hopper 15 Belt conveyor 16 Foreign matter crusher 17 Foreign Material Sorting Sieve 18 Belt Conveyor 19 Weighing Machine 20 Shipping Bag

Claims (3)

[Claims] 1. An organic raw sludge such as sewage sludge, human waste sludge, papermaking sludge, food residue, etc., is incinerated by adding pulp incineration ash, piemzai, fertilizer, carbonized wood chips, and wood vinegar to a stirrer. After adding and mixing things, after depositing this mixture, the mixture is stored in a fermentation bag having a proper air permeability by a crusher and after a predetermined fermentation period, the mixture contained in the fermentation bag is aerated. A method for producing remediation soil from organic sludge, which comprises subjecting a crusher to a crusher, removing foreign matter with a sieve, and then storing a predetermined amount in a shipping bag. 2. Raw materials for carbonized wood chips, such as lumber leftovers, thinned wood of cedar and pine, pine stakes, waste wood resulting from demolition of wooden structures, fallen wood, bark of imported raw wood, and a large amount of disposable disposable chopsticks. A method for producing soil for revegetation work from organic sludge according to claim 1 using other waste wood. 3. A fermentation bag having a diameter of 1 m and a storage capacity of 1 m.
^{3. The} method for producing soil for revegetation work from organic sludge according to claim 1, wherein a pair of hangings are provided on the upper part of the bag body.