PROSPECTS OF WATER OBJECTS TREATMENT FROM CHLORPHENOL COMPOUNDS USING SEAWEED

Abstract

Background The article is devoted to protection of natural waters located close to cities and industrial enterprises. Biotechnological methods of natural waters purification, which have high efficiency, low cost, ease of implementation of the process, as well as being environmentally safe, are of increasing interest. Aims and Objectives Investigation of the accumulation and subsequent biotransformation of toxic organic compounds, in particular chlorophenols, by lower aquatic plants from the cladophoric family ( Cladophoraceae ) - Linnea Ehagropila ( Aegagropila linnaei ). Methods Experimental studies using the chromatographic method. Results There presented the results of the study of the process of accumulation and subsequent biotransformation of chlorophenolic compounds (2-chlorophenol C6H5ClO, 2,4-dichlorophenol C6H4Cl2O, 2,4,6-trichlorophenol C6H3Cl3O, 2,3,4,6-tetrachlorophenol C6H2Cl4O, pentachlorophenol С6Н2Cl5O; lower cladophor family aquatic plants ( Cladophoraceae ). The intensity of these processes was determined by the chromatographic method on the residual content of organochlorine compounds in the purified water and plant tissues. The results indicate that algae provide high water purification from chlorophenolic compounds - the water purification efficiency for certain types of chlorophenols (2-chlorophenol С6Н5ClO) was more than 99 % in 24 hours. It was also found that the efficiency of the accumulation process depends on the size and properties of molecules and decreases in the series: monochlorophenol, 2,4-dichlorophenol, 2,4,6-trichlorophenol, 2,3,4,6-tetrachlorophenol, pentachlorophenol. Studies on the biotransformation of chlorophenols in the phytomass of green plants were performed using 2,4-dichlorophenol as a pollutant. The study found that complete biotransformation of chlorophenolic compounds occurs in 24 hours. This, apparently, is explained by the fact that algae possess a definite set of enzyme systems that ensure the processes of destruction and splitting of organochlorine compounds. After the dechlorination process, the compounds are biodegradated to form paraffins with different contents of carbon atoms. Thus, Aegagropila linnaei algae are an effective accumulator and destructor of chlorophenolic compounds. And biotechnology, based on the use of phytomass of green plants, is quite promising in the treatment of natural waters polluted with toxic organochlorine compounds.