CZ300310B6 - Disposal of organic halo derivatives - Google Patents

Abstract

The present invention is characterized by the use of proteinaceous alkali hydrolysates as a main carrier of a dehalogenation enzyme for neutralization of organic halo derivatives. The invented neutralization is based on the fact that proteinaceous alkali hydrolysates effectively convert halo derivatives of organic compounds to emulsions thus significantly increasing reaction surface of particles and at the same time, they enter into reaction with carboxylic groups with alkali metals and alkaline earth metals, which form along with a cleaved halo ion salts.

Description

Technical field

The invention relates to the disposal of organic halogen derivatives by utilizing the physical and chemical properties of alkaline protein hydrolysates (glutin, osein, keratin, casein hydrolyzate, etc.) for converting the organic halogen derivatives into a suitable colloidal system (emulsion) for safe decomposition by a dchalogenation enzyme.

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BACKGROUND OF THE INVENTION

BACKGROUND OF THE INVENTION In the field of the disposal of organic halogen derivatives, the neutralizing reaction can be characterized. Chlorinated lime or thermal reactive decomposition at high temperatures (above 1200 ° C) were commonly used. The disadvantage of this particularly neutralization solution is the formation of downstream products that are very difficult to biodegrade.

Another way to dispose of organic halogen derivatives is to use dehalogenation enzymes. It is a modern method of disposal of these compounds and a suitable carrier for this enzyme is sought for common use.

Alkaline protein hydrolysates have proven to be a very suitable carrier for dehalogenating enzymes that act synergistically.

SUMMARY OF THE INVENTION

The disadvantages of the known solutions are overcome by the disposal of the organic halogen derivatives according to the invention, which is based on the use of a protein-based alkaline hydrolyzate as an active carrier of a dchalogenating enzyme.

It is an advantage of the invention that the alkaline protein hydrolysates efficiently convert the halogen compounds of the organic compounds into emulsions, thereby significantly increasing the reaction surface of the particles while simultaneously reacting with carboxyl groups with alkali and alkaline earth metals which form salts with the halogenated ion.

Alkaline hydrolysates of proteins (glutin, keratin, osein, casein, etc.) have excellent emulsifying capacity, high buffering capacity and ability to treat sc in acidic environment as bases

4d and in an alkaline environment such as an acid. A very important condition is that the carrier of the alkaline protein hydrolyzate does not cause degradation of the dehalogenation enzyme, as demonstrated by the tests performed. The active entry of the alkaline hydrolyzates into the reaction with the halogenated derivatives of the organic compounds is thereby made possible. that about 2% of the amino acid functional groups are alkali ion-linked carboxylic acids.

4S

CZ 3 () 310 B6

O - Me, where Me can be Li, Na, K

O-Me-O wherein Me may be Mg or Ca

Z \ Alkali metals with halogen form salts - halogens of alkali metals according to the table

If F Lil Cl LÍCI J LiJ Br l.iBr On NaF Over Na.1 NaBr TO KF KCl KJ KBr Ca CalA CaCL CaJ ₂ CaBr. Mg MgF; MgCL MgJ; MgBr.

Organic halogen derivatives have the property that one or more of the hydrogen or functional groups is replaced by halogen. In the past, a large number of compounds have been produced which have excellent technical properties but adversely affect the human body and the environment. E.g.

DDT, polychlorinated biphenyls, freons, vilnyl chloride monomer. and directly superto.xieké substances that were developed to kill people-fighting poisoning substances - Vperit, Sarin, Soman, Tabun. These are predominantly oily substances or solids that dissolve well in non-polar solvents. Therefore, they are well emulsifiable with protein alkaline hydrolysates. since these also contain non-polar functional groups. Therefore, the use of alkaline protein hydrolysates as the carrier of the dehalogenation enzyme results in the emulsification of organic halogen derivatives. This greatly increases the reaction surface of the particles and allows the enzyme to act faster when halogen ions are cleaved. These react with alkali metals to form harmless salts. amino acids and organic residues. The mixture is further biodegradable, for example, in a biological stage of a sewage treatment plant specially designed for this purpose, in order to avoid mixing with other waters.

Examples:

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Example I: Destruction of large volumes of Yperit

A 5% colloidal solution of an alkaline hydrolyzate and a dehalogenated enzyme are charged to the reactor. To this mixture is added a hundred iometric amount of organic halogen derivative.

The reactor is hermetically sealed and the organic halogender is destroyed at 15 [deg.] C. with constant stirring for 160 minutes for hours depending on the resistance of the organic halogen derivative. The reaction product can be further disposed of in a biological wastewater treatment plant, e.g. Example 2: Disposal of old CFCs from refrigeration equipment, deloriums from transformers, and the like.

A 15% colloidal solution of the alkaline hydrolyzates and the dehalogenated enzyme are charged into the reactor. To this mixture is added a hundred iometric amount of organic halogen derivative.

AND

The reactor was hermetically sealed and the organic halide derivative was destroyed at 38 ° C with continuous stirring for 72 hours, depending on the resistance of the organic halide derivative. The reaction product can be further disposed of in a biological WWTP (waste water treatment plant).

Example 3: Destruction of contaminated military equipment

For decontamination, conventional military equipment such as ARS is used. Apod. A colloidal solution of 5% alkaline hydrolyzate was prepared, a Thalogenation enzyme was added, and this mixture was sprayed on an infested military technique. After 160 minutes mustard is safely disposed of.

Then rinse with clean water. The temperature of the reaction is given by the weather conditions in that. which moment.

Example 4: Disposal of Organic Halogenated Derivatives of Organophosphates (Sarin. Soman, Tabun).

The reactor is charged with a 20% protein hydrolyzate with Ca or Mg at a temperature of 15 to 38 ° C, while stirring for 240 minutes the organic halo (organo phosphates) is decomposed into amino acid chains, calcium or magnesium phosphate and calcium halide or magnesium.

Example 5: Utilization in industrial accident disposal - chlorine leakage,

They prepare a 10% alkaline protein hydrolyzate solution without a dehalogenating enzyme for fire trucks sc and this colloid solution is used to form a curtain against a cloud of chlorine. It is also suitable to use aviation technology (sprayers and helicopters), from which a 10% solution of an alkaline protein hydrolyzate can be sprayed from above into a cloud of chlorine, the reaction products being amino acid chains and the corresponding salt.

Claims (1)

PATENT CLAIMS Use of protein alkaline hydrolyzates as active carriers of a dehalogenation enzyme for the disposal of organic halogen derivatives.