KR890003126B1 - Compresion for removing heavy metal and odo from waste water - Google Patents

Abstract

No content.

Description

Deodorizing and Heavy Metal Removal Composition

The present invention relates to a composition for deodorizing and removing heavy metals capable of removing odors and heavy metals in wastewater, manure, live garbage or other dirt.

Conventionally, as a deodorant such as raw waste or manure, there is a microbial agent. Such a deodorant is to add a deodorizing ability microorganism belonging to the genus Lactobacillus to the manure, so as to multiply bacteria and decompose bad smell substances. However, the deodorant using microorganisms must maintain the titer of deodorizing bacteria, and it is difficult to rapidly grow and expand the deodorizing bacteria due to its interaction with the existing decaying bacteria existing in the manure in advance, and there is a problem in preservation management and fast-acting effect. .

In addition, in order to enhance the fastness of these microorganisms, there was a method of adding the activated carbon, acidic clay, perlite, diatomaceous earth, zeolite, bentonite, or ferric sulfate to incubate for 48 hours or more, but this method is essential There was a method of adding microorganisms and chemicals to the substrate to be treated and incubating for 48 hours or more, but this method was necessary to add these microorganisms and chemicals to the substrate to be treated and fermented for 48 hours or more. By adding in a solid state, the activity fell, and there existed a fault in terms of effect.

Another deodorant is a chemical agent based on granular ferric oxide. These deodorants solve the problem of shelf life because ferric oxide is regarded as a solid, but since ferric oxide is difficult to dissolve in water or dilute acid and does not exist in an ionic state, the reaction is late and the activity is low. The disadvantage was that it takes a lot of time to remove it.

In addition, Patent No. 11150 invented by the inventors has a deodorant composition consisting of 15-65% iron sulfate, 1-20% Guynet, 0.5-10% activated clay, and 0.1-5% manganese dioxide.

This deodorant composition is excellent in the deodorizing ability and the ability to remove heavy metals, there is a fast acting, but the effect was not sustained.

The present inventors have conducted a long study and found the deodorizing and heavy metal removing agent which is superior to the deodorizing and heavy metal removal ability and quick-acting than the said patent 11150, and continued the effect, and completed this invention. It is therefore an object of the present invention to provide novel deodorizing and heavy metal removal compositions.

This invention makes the next component into its composition component.

Soda Carbonate 5-15%

Trisodium Phosphate (dibasic Sodium Phosphate) 1.5-4.5%

Lactic Alumina 5-15%

Ferrous Sulfate 30-45%

Zeolite 15-25%

Disodium EDTA 5-15%

Acid clay 5-15%

Sodium sulfite 5-15%

Arofuro (brand name) 1.5-2.5%

Sodium chlorate or hypochlorite 0.5-1.5% Sodium carbonate combines with heavy metal ions that may be mixed in the dirt and is quickly removed with insoluble heavy metal carbonates.

Trisodium phosphate or disodium phosphate is thought to act as an antioxidative agent in the composition of the present invention.

Lactic acid alumina is widely used for flocculation in waterworks, and when it is used for wastewater or raw waste, the flocculation effect is further exerted. Zeolite is a porous material that is used as a water softener by ion exchange when softening hard water which is used as an adsorbent in chemical experiments or other chemical industries. The composition of the present invention also serves as an adsorbent to adsorb heavy metals or adsorb odors to remove odors. Disodium EDTA (EDTA 2Na) binds to heavy metals and converts them into chelating compounds, which are used as chelating agents in chemical experiments. Acid clay has the effect of adsorption and deodorization, and sodium sulfite functions as an antioxidant. Aaron Flock is a polyacrylamide-based organic synthetic polymer flocculant developed by Toagosei Kagaku Co., Ltd. of Japan, and has excellent flocculation effect.

Sodium chlorate or hypochlorite acts to kill E. coli and other harmful bacteria in wastewater or manure. Each of these components is organically reacted in the composition of the present invention to maximize its deodorization and heavy metal removal effect.

The composition of the present invention may be used in the form of a suspension, solid or powder, or may be molded into granules or other shapes.

In the deodorizing and heavy metal removal composition of the present invention, iron sulfate as a main component is instantaneously combined with sulfur compounds and nitrogen compounds to produce ammonia sulfate and iron emulsion, and other untreated ammonia or sulfur compounds are adsorbed and removed by zeolite, acid clay, and the like.

The heavy metal is removed as an insoluble carbonate by the soda carbonate contained in the composition of the present invention, the remaining heavy metal ions are adsorbed and removed by zeolite and activated clay, and the trace amount of heavy metal ions is removed by chelating by EDTA 2Na. . The sulphate, carbonate, adsorbed acidic clay, zeolite, etc. thus produced are flocculated by lactic acid alumina and aron floc. Next, the composition of the present invention will be described in detail as production examples.

Preparation Example 1

Powdered ferrous sulfate 30-45 parts (weight), sodium carbonate 5-15 parts (weight), alumina alumina 5-15 parts (weight), sodium sulfite 5-15 parts (weight), dibasic sodium phosphate 1.5- 4.5 parts by weight, 5-15 parts by weight of acidic clay, and 15-25 parts by weight of zeolite are mixed well. Add 5-15 parts (weight) of Derdium EDTA and 1.5-2.5 parts (weight) of Aaron Flock, mix well, add 0.5-1.5 parts (weight) of sodium hypochlorite, mix closely, and then divide and package them in 5Kg increments. do.

Production Example 2

200 parts (weight) of water is added to the composition prepared in Preparation Example 1 and mixed closely to obtain a paste composition.

Preparation Example 3

In Preparation Example 1, 1.5-4.5 parts (weight) of trisodium phosphate instead of the second sodium phosphate and 0.5-1.0 parts (weight) of sodium chlorate in place of sodium hypochlorite were added and mixed closely. After granulation, granules are prepared.

Experimental Example 1

The amount of H ₂ S was measured and the amount of H ₂ S was measured to be 0.15 ppm, but NH ₃ was measured to be 240 ppm. The composition H ₂ S of the Preparation Example 1 of the present invention was 0.02 ppm, and left for 1 hour after H _2. S amount was 0.001 ppm.

In addition, NH ₃ amount immediately after addition of the composition of this invention was 8 ppm, and the amount after 1 hour was 4 ppm. This is shown in Table 1.

TABLE 1

* Measurement method: Colorimetric method (Standard Method of Chemical Analysis 6zd.Vol. 2, Part A P. 634).

* Measurement method: measured by acid titration method (Standard & Method of Chemical Analysis Vol. 2, Part A P. 598).

From the above data, the composition of the present invention has been found to be fast-acting, and further has a remarkable effect over time.

Experimental Example 2

Heavy metal content test:

After adding 10 g of the composition of the present invention to 5000 ml of plating plant wastewater and mixing, the result of measuring the heavy metal after 1 hour is shown in Table 2 below.

TABLE 2

Heavy metals (Hg, As, Pb, Cr, Cu, Zn, Cd)

Hg ･ ･ ･ ･ ･ ･ ･ ･ ･ ･ ･ ･ ･ ･ ･ ･ ･

As ·····················

Pb ･ ･ ･ ･ ･ ･ ･ ･ ･ ･ ･ ･ ･ ･ ･ ･ ･

Cr ······························

Cu ······················ 0.01 ppm

Zn ... 0.021ppm

Cd ..... not detected

As can be seen from the above results, the heavy metal removal ability of the composition of the present invention proves to be excellent.

Experimental Example 3

The composition of the present invention was diluted in 500 times of water and forcedly administered to the flow rate of the mouse (about 30 g body weight) to test the quenching toxicity, as shown in the following Table 3, no abnormality was observed.

TABLE 3

Experimental animal: ICR mouse (male 30 g)

Method of administration: Forced administration of 1ml of test solution per mouse into the stomach

Observation of Animals: Animals were bred for 5 days after the administration of the test solution, and the condition and life and death were observed.

RESULTS: As a result of administration of the test solution to 10 mice, there were no deaths, and no abnormality was found in the appearance of the test-administered mice.

In view of the above, it was confirmed that no damage to livestock was caused even when the liquid was sprayed onto the barn or the like.

Claims (1)

5-15 parts of sodium carbonate (weight, 1.5-4.5 parts (weight) of sodium phosphate, 5-15 parts (weight) of lactic acid alumina), 30-45 parts (weight) of ferrous sulfate, 15-25 parts (weight) of zeolite, 5-15 parts (weight) of disodium EDTA, 5-15 parts (weight) of acidic clay, 5-15 parts (weight) of sodium sulfite, 1.5-2.5 parts (weight) of Aaron Flock, and combustion oxygen (or sodium hypochlorite) ) Deodorizing and heavy metal control composition made by mixing 0.5-1.5 parts (weight).