Biochemical-photocatalytic advanced water treatment method for PBBC wastewater

[0027] Example 1

[0028] The basic situation of the raw water to be treated is: PBBC ​​wastewater. The wastewater mainly contains phenol, tetrabromobisphenol A (TBBA) and a very small amount of dichloromethane and triethylamine. Wastewater pH is 6.5~7.5, COD value is 2500mg / L, BOD 5 / CODcr is 0.26, and the chloride ion content is higher, at 4000mg / L, which belongs to high toxicity, high salt and refractory wastewater.

[0029] The PBBC ​​wastewater is filtered to remove suspended solid particles in the water, while also removing part of the organic matter. At room temperature, the pretreated PBBC ​​wastewater is reacted under the catalysis of ultraviolet rays, and a nickel mesh loaded with titanium dioxide is used as a photocatalyst. The wavelength of the ultraviolet rays is 254 nm. The PBBC ​​wastewater flows through the nickel mesh and In the photocatalytic reactor of the ultraviolet lamp tube, the photocatalytic reaction time flowing through is 1.5 hours, and the pH value o

[0034] Example 2

[0035] The basic situation of the raw water to be treated is: PBBC ​​wastewater. The wastewater mainly contains phenol, tetrabromobisphenol A (TBBA) and a very small amount of dichloromethane and triethylamine. Wastewater pH is 6.5~7.5, COD value is 2500mg / L, BOD 5 / CODcr is 0.26, and the chloride ion content is higher, at 4000mg / L, which belongs to high toxicity, high salt and refractory wastewater.

[0036] The PBBC ​​wastewater is filtered to remove suspended solid particles in the water, while also removing part of the organic matter. At room temperature, the pretreated PBBC ​​wastewater is reacted under the catalysis of ultraviolet rays, and a nickel mesh loaded with titanium dioxide is used as a photocatalyst. The wavelength of the ultraviolet rays is 254 nm. The PBBC ​​wastewater flows through the nickel mesh and The photocatalytic reactor of the ultraviolet lamp tube, the flow velocity of the PBBC ​​wastewater is 2.5m 3 / h, the photocatalytic reacti

[0041] Example 3

[0042] The basic situation of the raw water to be treated is: PBBC ​​wastewater. The wastewater mainly contains phenol, tetrabromobisphenol A (TBBA) and a very small amount of dichloromethane and triethylamine. Wastewater pH is 6.5~7.5, COD value is 2500mg / L, BOD 5 / CODcr is 0.26, and the chloride ion content is higher, at 4000mg / L, which belongs to high toxicity, high salt and refractory wastewater.

[0043] The PBBC ​​wastewater is filtered to remove suspended solid particles in the water, while also removing part of the organic matter. At room temperature, the pretreated PBBC ​​wastewater is reacted under the catalysis of ultraviolet rays, and a nickel mesh loaded with titanium dioxide is used as a photocatalyst. The wavelength of the ultraviolet rays is 254 nm. The PBBC ​​wastewater flows through the nickel mesh and The photocatalytic reactor of the ultraviolet lamp tube, the flow velocity of the PBBC ​​wastewater is 3.5m 3 / h, the photocatalytic reacti