With the rapid development of industry, the types and quantities of wastewater are also increasing, not to mention the pollution of water bodies! A serious threat to human health and safety. In this chapter, water quality online monitoring instrument manufacturers come to understand the biological toxicity classification and detection problems of industrial wastewater.

Classification of Biological Toxicity of Industrial Wastewater

Biological toxicity is defined as the degree of damage caused by industrial wastewater to the organism itself, which is generally manifested in three types:

· Acute and chronic according to the speed of biological toxicity. Acute refers to the reaction of poisoning that occurs when the organism is exposed to external chemical components for a period of time in contact with a product, and this reaction comes out quickly and the effect is detailed. As for chronic is just the opposite, the effect of this exposure is particularly slow, takes a long time to respond, the effect is not obvious, and the length of time depends on the degree of resistance of the species tested to the chemical composition.

· Traits that lead to genetic mutation and thus inheritance. Genetic mutation refers to that after the organism is attacked by external substances, its own genetic genes change, and the chromosomal lesions of genes occur, which are then highlighted in the genetic process, often resulting in the occurrence of wrong lesions of genetic material, resulting in greater changes in genetic characteristics.

· Interfering characteristics that affect endocrine. Endocrine disrupting properties refer to the chemical components in wastewater that cause damage to the endocrine system of organisms, resulting in abnormal secretion of organisms.

How Should We Detect Biological Toxicity in Industrial Wastewater?

Biological toxicity in industrial wastewater can be detected by water quality monitoring instrument. The WTox-8000 biotoxicity online analyzer produced by Hangzhou Modi-Tech adopts the luminescent Bacillus method to quickly and accurately test the toxicity of the sample by the change of luminescent bacteria (Vibrio Fischer) and the sample’s luminous intensity during the reaction. The toxicity spectrum covers more than 5,000 potential toxic substances. Widely used in drinking water source safety, emergency assessment and toxicity determination of a variety of pollutants, toxicity test technology is a toxicity detection system based on biosensing technology, which provides an effective response to water supply pollution (whether caused by intentional damage or accidents) detection means. However, because acute toxicity tests can be completed within 5 to 30 minutes, rapid response to water quality changes is guaranteed.