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This study is aimed at industrial wastewater, and distinguishes industrial park manufacturers' discharge water(potential chemical substances)assessment, Establishment of model bioassay method, industrial discharge water toxicity identification, and environmental fate of sewage treatment plant discharge water (potential poisons). 5 major research spindles. Industrial discharge water evaluation: heavy metal selection of copper sulfate, zinc sulfate, cadmium sulfate, gallium sulfate, indium sulfate, copper nitrate, cadmium nitrate, lead nitrate, molybdenum trioxide and other metal salts represent the main poison of the discharged water, as a reference poison to the water Biotoxicity tests were carried out on D.magna and Pseudorasbora parva and zebrafish embryos. The results show that copper nitrate is the most serious biological toxicity. Organic pollutants (tetramethylammonium hydroxide and 4-chlorophenol)and heavy metal pollutants (copper sulfate)to prepare bio-toxic artificial water samples. The toxicity of three poisons to D.magna and Pseudorasbora parva is: copper sulfate > 4-Chlorophenol > Tetramethylammonium hydroxide. Use(1)tetramethylammonium hydroxide / 4-chlorophenol,(2)tetramethylammonium hydroxide / copper sulfate,(3)4-chlorophenol / copper sulfate, and(4)tetramethylammonium hydroxide / 4-Chlorophenol / copper sulfate for mixed toxicity test. For D.magna and Pseudorasbora parva , the toxicity of 4-chlorophenol/copper sulfate is the strongest and synergistic effect occurs. The toxicity of sulphur(sodium hypochlorite, hydrogen peroxide)to D.magna and Pseudorasbora parva is: sodium hypochlorite > hydrogen peroxide; the acid and alkali resistance of D.magna and Pseudorasbora parva are pH 5.4 ~ 10.2 and pH 4.2 ~ 10.8, respectively. Both species have extremely high tolerance(>18000 NTU)for the turbidity produced by Silicon dioxide and calcium fluoride. Establishment of model bioassay method:(1)Zebrafish embryo toxicity detection method;(2)Bacterial fluorescence acute toxicity detection method;(3)Apocyclops royi invertebrates marine acute toxicity detection method;(4)Method for detecting acute toxicity of freshwater and seawater in medaka. Subsequent reference poison tests and real industrial drain water tests showed good biotoxicity detection reactions. Study on the method for the identification of industrial discharge water toxicity: We have established a procedure for the identification of industrial discharge water toxicity in Taiwan. Indicates the potential for identification and assessment of the cause of water toxicity. The results confirmed that chemical analysis and biological toxicity analysis of water samples, two-way evaluation of the feasibility of identifying poisons, can improve and make up for Taiwan's industrial wastewater toxicity identification methods and biological detection methods, and control the river discharge water monitoring mechanism. Environmental fate study of released water(potential poisons): The toxicity assessment procedure is combined with the Effect-Directed Analysis method, and the zebrafish embryo toxicity test method is used as a supplement to effectively identify and evaluate potential poisons in water bodies and sediments. Final recommendations:(1)Careful selection of biological toxicity test test organisms, sensitivity must be different.(2)Research and development combined with toxicity identification evaluation process and effect-oriented analysis method to identify industrial wastewater biological toxicity and poison.(3)Automation and intelligent biotoxic methods, including acute toxicity and chronic toxicity, to continuously improve method performance and data quality.(4)Research and development of biochemical and cell-based high-throughput fast screening test methods and related core technologies.(5)Research and development of toxicology technology and the establishment of related software equipment, towards the goal of predicting and preventing toxicology.
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