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Integrated device and method for treating roof rainwater by gravity type micro-filtration membrane through coupling of roof rainwater energy and electrooxidation disinfection

A microfiltration membrane and gravity-type technology, applied in the field of water resources utilization, can solve the problems of complex structure system, strict treatment conditions and high treatment costs, and achieve the effect of simple reaction device and process, reduced operating costs and mild reaction conditions

Inactive Publication Date: 2021-02-19
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The structure system of the traditional method is complex and huge, it occupies a large area, and requires the addition of chemicals. The pH value and temperature of the treated water will affect the treatment effect, making the treatment conditions strict, high treatment costs, and easy to cause secondary pollution

Method used

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  • Integrated device and method for treating roof rainwater by gravity type micro-filtration membrane through coupling of roof rainwater energy and electrooxidation disinfection
  • Integrated device and method for treating roof rainwater by gravity type micro-filtration membrane through coupling of roof rainwater energy and electrooxidation disinfection
  • Integrated device and method for treating roof rainwater by gravity type micro-filtration membrane through coupling of roof rainwater energy and electrooxidation disinfection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Such as Figure 1 to Figure 3 As shown, this embodiment discloses an integrated device for treating roof rainwater by gravity microfiltration membrane using roof rain energy coupled with electro-oxidation disinfection, which mainly includes a vertically arranged rainwater bucket, a raw water inlet valve, an initial rainwater discarding device, an initial Water storage tank, membrane tank inlet valve, gravity microfiltration membrane tank, membrane tank outlet valve, airtight electro-oxidation disinfection tank, disinfection tank outlet valve, water storage tank, and water appliances. The rainwater bucket is arranged under the eaves to receive the rainwater flowing from the roof, and its water outlet is respectively connected to the initial rainwater discarding device and the initial water storage tank through the raw water inlet valve. The water outlet of the initial rainwater discarding device is connected to the outside world. The outlet end of the initial water stor...

Embodiment 2

[0051] Such as figure 1 , this embodiment provides an integrated device for treating roof rainwater by gravity microfiltration membrane using roof rain energy coupled with electro-oxidation disinfection, including rainwater bucket 1, raw water inlet valve 2, initial rainwater discarding device 3, and initial storage tank 4 , Membrane tank water inlet valve 5, gravity microfiltration membrane tank 6, check valve 7, membrane tank outlet valve 8, airtight electro-oxidation disinfection tank 9, power supply 13, disinfection tank outlet valve 10, water storage tank 11, water appliance 12. The rainwater bucket 1 is connected to the roof, and its connecting pipes are respectively connected with the initial rainwater discarding device 3 and the initial water storage tank 4. The connecting pipe is provided with a raw water inlet valve 2; the initial water storage tank 4 is connected with the gravity microfiltration membrane pool 6, and a There is a membrane pool inlet valve 5; the outl...

Embodiment 3

[0062] This example provides some experimental data and treatment effects of an integrated device for treating roof rainwater using a gravity-type microfiltration membrane using roof rain energy coupled with electro-oxidation disinfection to treat roof rainwater:

[0063] Influent parameters: pH=7.57, turbidity=12.6NTU, conductivity=588(μS / cm), DO=6.33mg / L, UV254=0.067, NH3-N=0.68mg / L, COD=1.98mg / LO2 , TP=0.34mg / L. At a temperature of 27.4°C, the anode is a titanium-based IrO2 electrode, the cathode is a ruthenium-titanium electrode, and the current density is 10mA / cm2 to treat the influent water, and then collect the treated effluent. Measured water pH=7.8, turbidity=0.29NTU, conductivity=616(μS / cm), DO=6.52mg / L, UV254=0.044, NH3-N=0.055mg / L, COD=1.35mg / LO2, TP = 0.215 mg / L.

[0064] It can be seen that the integrated device provided by this scheme has a high removal rate for impurities and NH3-N in roof rainwater, and has a certain removal effect for TP, COD, humic acid, e...

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Abstract

The invention discloses an integrated device and method for treating roof rainwater by a gravity type micro-filtration membrane through coupling of roof rainwater energy and electrooxidation disinfection. The device comprises a rainwater hopper, an initial rainwater discarding device, an initial water storage tank, a gravity type micro-filtration membrane tank, a check valve, a closed electrooxidation disinfection tank, a water storage tank and a water appliance. The rainwater hopper is respectively communicated with the initial rainwater discarding device and the initial water storage tank. The initial water storage tank is connected with the gravity type micro-filtration membrane tank, the gravity type micro-filtration membrane tank is connected with the closed electrooxidation disinfection tank, the closed electrooxidation disinfection tank is connected with the water storage tank, and the water storage tank is connected to the water appliance. According to the method, rainwater passes through a coupling process combining the advantages of a gravity type micro-filtration membrane technology and an electrooxidation disinfection technology, and then treated water is collected andused as living water. Roof rain energy gravity driving is adopted, energy expenditure is saved, roof rainwater can be well subjected to impurity removal, sterilization and disinfection, rainwater resources are fully utilized, and considerable economic benefits are achieved.

Description

technical field [0001] The invention relates to the technical field of water resources utilization, and in particular to an integrated device and method for treating roof rainwater by a gravity microfiltration membrane using roof rain energy coupled with electro-oxidation and disinfection. Background technique [0002] my country is a country suffering from severe drought and water shortage. The per capita water resources are only 1 / 4 of the world average level, and it is one of the countries with the poorest per capita water resources in the world. Collecting and utilizing rainwater as an important water resource has become an important way to solve the shortage of water resources. As a precious water resource, urban rainwater is mainly collected and utilized through three confluence media: roofs, roads, and permeable ground. In the selection of confluence medium, the water quality, water quantity and subsequent collection and treatment requirements should be considered co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/06E04D13/04E03B11/00E03B3/02
CPCC02F1/444C02F1/4672E04D13/0404E03B3/02E03B11/00C02F2103/001C02F2303/04E04D2013/0495Y02A20/108
Inventor 杜星王震李子阳许志宏司徒祖祥黄子康刘立凡王志红
Owner GUANGDONG UNIV OF TECH
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