Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Device and method for treating ship sewage through ultrasonic strengthening internal electrolysis coupling biological method

A technology of ultrasonic strengthening and internal electrolysis, applied in water treatment devices, chemical instruments and methods, electrochemical water/sewage treatment, etc. The effect of saving ship space

Inactive Publication Date: 2015-12-23
HARBIN ENG UNIV
View PDF10 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the internal electrolysis technology also has the following defects: the reaction needs to occur under acidic or oxygenated conditions, and the pH value of the influent and effluent water needs to be adjusted, and in this case, the corrosion rate of iron is accelerated, and aeration increases the operating cost; Raw material compaction and clogging occur, reducing the treatment effect
In order to improve the defects of the poor phosphorus removal effect of the above-mentioned reactors, some researchers have proposed a sequence batch type anoxic / anaerobic membrane bioreactor

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Device and method for treating ship sewage through ultrasonic strengthening internal electrolysis coupling biological method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0043] The device is mainly composed of raw water tank 1, peristaltic pump 5, ultrasonic generator 2, ultrasonic vibrating rod 3, catalytic iron inner electrolytic column 4, integrated MBR membrane bioreactor 6, aeration pump 7, suction pump 9, backwash water pump 8. Composed of membrane module 10, clean water tank 11, pressure gauge and time relay.

[0044] The primary filtered raw water enters the ultrasonically enhanced internal electrolytic column, and the pollutants (mainly soluble phosphate) in the wastewater are removed under the action of ultrasonic cavitation, electrochemical reaction, reduction, flocculation and precipitation. Among them, the ultrasonic frequency can be selected from 10 ~ 1000kHZ, the power can be selected from 20 ~ 1000w, the ultrasonic time can be 10 ~ 30min, and can be operated at intervals. The bimetallic catalytic system of waste iron filings or iron shavings packed in the catalytic electrolysis column can be Cu / Fe, Ni / Fe, Pd / Fe, Ag / Fe, Mn / Fe, C...

Embodiment approach 2

[0046] In addition to using ultrasound to strengthen the internal electrolysis, microwave treatment can also be added to the internal electrolysis system to strengthen the reaction process. The microwave power can be 100-1000w, and the irradiation time can be 1-10min. Other operations can be the same as in Embodiment 1.

[0047] The ultrasonic enhanced internal electrolysis coupled biological method of the present invention is a device for treating domestic sewage from ships:

[0048] The sewage collected through the drainage pipes on the ship enters the catalytic internal electrolysis reaction column equipped with ultrasonic vibrating rods after primary filtration to remove relatively large impurities. MnO can also be added to the electrolytic packing in the reaction column 2 Such as metal oxides or oxyhydroxides or zeolites, or the corresponding inorganic salts can be added to the wastewater to improve the conductivity of the wastewater and strengthen the internal electroly...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a device and method for treating ship sewage through an ultrasonic strengthening internal electrolysis coupling biological method. Ship sanitary sewage in a raw water tank enters a catalytic iron internal electrolysis column through a peristaltic pump, an ultrasonic vibration bar mounted in the catalytic iron internal electrolysis column emits ultrasonic waves to strengthen an internal electrolysis reaction, the sewage subjected to the ultrasonic strengthening internal electrolysis reaction enters an aeration tank, pollutants in the sewage are further treated through activated sludge in an MBR, a time relay controls an aeration pump to be started and stopped, and when the aeration pump runs, nitrobacteria in the aeration tank are subjected to an aerobiotic nitration reaction, and meanwhile a reverse suction pump carries out suction and water output; when the aeration pump is stopped, nitrogen removal by denitrification effect is achieved in the aeration tank, and the suction pump stops suction. According to the device and method, the requirement in a guide rule for the emission of nitrogen and phosphorus in the ship sanitary sewage can be effectively met, by means of the device, the space of a ship is saved, nitration liquid does not need to flow back, operation and management are convenient, and the device and method are suitable for being used for the ship.

Description

technical field [0001] The invention relates to a device and method for treating ship sewage, in particular to a device and method capable of effectively removing nitrogen and phosphorus pollutants in ship domestic sewage. Background technique [0002] With the rapid development of shipping industry and modern ocean development technology, about 70% to 80% of the world's freight is carried by ships, and ships will inevitably discharge ship sewage during operation. Due to the high pollution load of ship sewage, a large amount of organic matter and nitrogen and phosphorus elements enter the water body, resulting in excessive growth and reproduction of algae and microorganisms, and eutrophication of the water body causes red tides and algal blooms, seriously affecting the sustainable development of the marine ecological environment. At present, the research on ship sewage treatment still stays at pollution indicators such as organic matter and SS, while the International Mariti...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14B63J4/00C02F1/36C02F1/46
Inventor 朱丽楠禾海伶王春丽施悦米海蓉刘桂芳孙勇
Owner HARBIN ENG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com