Sewage disinfection device and disinfection method

A technology of disinfection device and disinfection method, applied in water/sewage treatment, chemical instruments and methods, light water/sewage treatment, etc., can solve problems such as difficulty in meeting practical application requirements and small treatment capacity

Inactive Publication Date: 2021-02-12
杭州鹿扬科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the reported photocatalytic reactors are mainly continuous batch type, and the processing capacity is small, which is difficult to meet the requirements of practical applications.

Method used

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  • Sewage disinfection device and disinfection method
  • Sewage disinfection device and disinfection method
  • Sewage disinfection device and disinfection method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A method for preparing a photocatalyst for a sewage disinfection device, comprising:

[0045] S1: take SnCl respectively 4 ·5H 2 O and La(NO 3 ) 3 ·6H 2 O and transition metal nitrates (Os, Hf, Eu, the molar ratio of metal cation species is 0.2:0.4:1) dissolved in deionized water (SnCl 4 ·5H 2 O, La(NO 3 ) 3 ·6H 2 The ratio of the amount of O to the transition metal is 1:0.9:0.2), heated to 80°C, added 1M NaOH solution, and kept stirring to obtain white precipitate mixed solutions A and B;

[0046] S2: Mix the above-mentioned precipitation mixture A and B, add citric acid, ethylene glycol (the amount of substances added by citric acid, ethylene glycol and SnCl 4 ·5H2 O, La(NO 3 ) 3 ·6H 2 The ratio of O is 1.2:2.4:1:0.9), after stirring, add ammonia water dropwise to adjust the pH value of the solution to 2.8, and heat in a water bath at 70°C for 4 hours to form a sol;

[0047] S3: add graphene oxide (the quality of graphene oxide and SnCl 4 ·5H 2 The mass...

Embodiment 2

[0049] The difference between the preparation of a photocatalyst for a sewage disinfection device and Example 1 is:

[0050] S1: Among transition metals Os, Hf, Eu, the molar ratio of metal cations is 0.3:0.5:1; SnCl 4 ·5H 2 O, La(NO 3 ) 3 ·6H 2 The ratio of the amount of O to the transition metal is 1:0.8:0.1;

[0051] S2: The amount of substances added by citric acid and ethylene glycol and SnCl 4 ·5H 2 O, La(NO 3 ) 3 ·6H 2 The ratio of O is 1.2:2.4:1:0.8;

[0052] S3: Quality of graphene oxide vs. SnCl 4 ·5H 2 The ratio of the amount of substance of O is 0.6:1g / mol.

Embodiment 3

[0054] The difference between the preparation of a photocatalyst for a sewage disinfection device and Example 1 is:

[0055] S1: Among transition metals Os, Hf, Eu, the molar ratio of metal cations is 0.2:0.7:1; SnCl 4 ·5H 2 O, La(NO 3 ) 3 ·6H 2 The ratio of the amount of O to the transition metal is 1:0.8:0.2;

[0056] S2: The amount of substances added by citric acid and ethylene glycol and SnCl 4 ·5H 2 O, La(NO 3 ) 3 ·6H 2 The ratio of O is 1.2:2.4:1:0.85;

[0057] S3: Quality of graphene oxide vs. SnCl 4 ·5H 2 The ratio of the amount of O to the substance is 1:1g / mol.

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Abstract

The invention discloses a sewage disinfection device and a disinfection method, and relates to the technical field of photo-catalysis and sewage treatment. The sewage disinfection device comprises a reactor which is provided with a liquid inlet and a liquid outlet, wherein the inner wall of the reactor is coated with a photocatalyst coating; and an ultraviolet lamp, which is inserted into the reactor and extends along the axis direction of the reactor. According to the prepared sewage disinfection device, the synergistic effect of the photocatalyst and the ultraviolet light is utilized, and the excellent sterilization efficiency is achieved; toxic compounds in bacteria and viruses can be directly decomposed into carbon dioxide and water, bacteria and viruses are thoroughly killed, and thephoto-reactivation phenomenon of the bacteria and the viruses can be effectively inhibited.

Description

technical field [0001] The invention belongs to the technical field of photocatalysis and sewage treatment, and in particular relates to a sewage disinfection device and a disinfection method. Background technique [0002] The problem of water pollution has become one of the most important restrictive factors in my country's economic and social development, which has attracted great attention from the state and local governments. The causes of my country's water pollution are multifaceted and highly complex, involving seriously insufficient capital investment, imperfect management system, inadequate supervision and performance management, and lack of independent development of key technologies and complete sets of equipment. Therefore, research and development of a treatment equipment with low investment, high treatment efficiency, low operating cost, and easy operation and management will drive the technological upgrading and industrial development of the water pollution co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/63C02F1/32C02F1/72
CPCB01J23/002B01J23/63B01J35/004B01J2523/00C02F1/325C02F1/725C02F2201/322C02F2303/04C02F2305/023C02F2305/10B01J2523/3706B01J2523/3743B01J2523/43B01J2523/49B01J2523/825
Inventor 不公告发明人
Owner 杭州鹿扬科技有限公司
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