I. Analysis of bacteria in sewage in general hospitals

1. A variety of germs, viruses and parasite eggs;

2. Hepatitis virus;

3. Mycobacterium tuberculosis;

4. Pathogenic bacteria;

5. The phenolic content in the hospital sewage exceeds the standard (caused by the disinfectants, medicament residues or waste medicines commonly used in hospitals).

    Second, the mechanism of chlorine dioxide treatment of hospital sewage

    Chlorine dioxide is a yellow-green gas, easily soluble in water, and its solubility in water is about 2900mg / L. Chlorine in chlorine dioxide exists as tetravalent, and its activity can be 2.5 times that of chlorine. Scientific research has confirmed that chlorine dioxide has a good killing effect on E. coli, bacteria, spores, viruses and algae. The mechanism is: chlorine dioxide has a good adsorption and penetration effect on the cell wall, can effectively oxidize the enzyme containing hydrogen sulfide in the cell, and inhibit the synthesis of microbial proteins. Chlorine dioxide has better sterilization ability and stability in water than other disinfectants such as chlorine. Chlorine dioxide can effectively oxidize certain chemicals in hospital sewage, such as phenol, cyanide, sulfur and odor-producing substances Thiols, secondary amines, tertiary amines, etc., improve water quality and deodorization.

    3. Chlorine dioxide generator

    1.WH series chlorine dioxide generator is composed of several major systems such as feeding, reaction, absorption, temperature control and residual liquid treatment, and external circulation auxiliary heating device. The high-tech-chemical reaction negative pressure aeration (multi-stage) new process is used to prepare the chlorine dioxide disinfection solution.

    2. The outstanding advantages of this equipment are the continuous operation without power, high degree of automation, strong generating capacity, high yield, no residual liquid, and avoiding secondary pollution.

    3. The equipment runs safely and reliably, with low failure rate and long service life. The operation and maintenance are simple, no special staff is required, and regular replenishment can be used for a long time. The operator only needs to open or close the valve regularly to control the normal operation of the equipment. .

    4. The equipment investment is low, and the operating cost is low, and the treatment of hospital sewage is less than 0.11 yuan per ton.

    5. The equipment structure is reasonable, the appearance is beautiful, the floor area is small, the chemical method chlorine dioxide generator is the ideal equipment currently used for disinfection of hospital sewage.

    6. Raw materials for equipment: industrial sodium chlorate (content 99%) and industrial synthetic hydrochloric acid (concentration 31%)