Run clean environmental protection water treatment equipment chlorine dioxide generator from the big aspects of chemical method, electrolysis, positive pressure, negative pressure, high purity, composite and so on; we mainly from the perspective of chlorine to give you a friend to do an introduction:
1, the different water quality should be processed to achieve what kind of standards?
Drinking water: GB5749-85
Project standard
Total bacteria ≤ 100 / ml
Total coliforms ≤ 3 / ml
Free residual chlorine in contact with the water for 30 minutes is not less than 0.3mg/L
Trichlorine 60ug / L
Swimming pool water: Hygienic Standard for Swimming Places"
●Free Residual Chlorine: 0.4?0.6mg/L
●Chemical Residual Chlorine: >1.0mg/L
●Total Coliform Bacteria: <18/l
●Total Bacterial Counts: <1000/ml
Hospital Wastewater: Hospital Wastewater Discharge Standards (GBJ48-83)
Hospital wastewater: "Hospital Wastewater Discharge Standards (GBJ48-83)
Hospital wastewater: "Hospital Wastewater Discharge Standards (GBJ48-83)"
●Three consecutive times, 500ml of each test, shall not be detected enteric pathogenic bacteria and bacilli;
●Total coliforms shall not be greater than 500 / L
Central water: "miscellaneous water quality standards for domestic water" (CJ25.1-89)
●Free residual chlorine: the end of the pipe network is not less than 0.2 mg /L
●Total coliforms: <3 /L
2, the amount of effective chlorine added to various types of water bodies?
di drinking water 0.5g/m3 - 1.2g/m3
di surface water drinking 2g/m3 - 4g/m3
secondary water supply 0.1g/m3 -0.5g/m3
Swimming pool water 2g/m3-5g/m3
Hospital sewage 30g/m3-50g/m3< /p>
Central water 5g/m3-8g/m3
Industrial circulating water 3g/m3-5g/m3
Other tests to determine
3, the actual application of examples:
A hospital design beds 175, now to choose a chlorine dioxide generator for the hospital's sewage treatment, to meet the requirements of discharge standards, chlorine dioxide generator selection is as follows:
Hospital beds:
Average hourly flow of sewage:
Q1=175 × 0.5 ÷ 24=3.6m3/h
Variable parameters:
k=2.5
Maximum hourly flow of sewage:
The maximum hourly flow of sewage:
The maximum hourly flow of sewage:
Maximum flow rate of sewage: Q2=3.6×2.5=9m3/h
Contact time: more than half an hour
Generally, the hospital sewage treatment required for the dosage of pharmaceuticals: 30-50g/m3
Maximum amount of pharmaceuticals per hour: Q3=9m3/h×50=450g/h
So the hospital selected HB -500 type chlorine dioxide generator that can fully meet the requirements of sewage disinfection treatment