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Equipment and method for treating ship domestic sewage through electrolytic process

A technology of domestic sewage and electrolysis, which is applied in chemical instruments and methods, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc. , Water quality adaptability, small size effect

Active Publication Date: 2011-07-13
SUNRUI MARINE ENVIRONMENT ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0020] The purpose of the present invention is to provide a device for electrolytic treatment of ship domestic sewage that can make the treated ship domestic sewage reach the standard and is easy to operate, so as to solve the technical problem that the existing ship domestic sewage treatment does not meet the standard

Method used

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  • Equipment and method for treating ship domestic sewage through electrolytic process
  • Equipment and method for treating ship domestic sewage through electrolytic process
  • Equipment and method for treating ship domestic sewage through electrolytic process

Examples

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Effect test

example 1

[0064]Example 1: First use a crushing pump to crush the larger solid particles in the domestic sewage, lead a road of seawater through the electrolytic cell, and electrolyze to produce a certain concentration of sodium hypochlorite seawater solution. Inject the pulverized ship domestic sewage into the pipeline of a certain concentration of sodium hypochlorite seawater solution produced by electrolysis. After measurement, the concentration of sodium hypochlorite in the mixed ship domestic sewage is 30ppm. After mixing, the domestic sewage containing 30ppm sodium hypochlorite stays in the overflow tank for 30 minutes to sterilize and oxidize and decompose part of the sodium hypochlorite. After the domestic sewage flows out of the overflow tank, the neutralization unit is used to eliminate residual chlorine, and then discharged.

example 2

[0065] Example 2: First use a crushing pump to crush the larger solid particles in the domestic sewage, lead a road of seawater through the electrolytic cell, and electrolyze to produce a certain concentration of sodium hypochlorite seawater solution. Inject the pulverized ship domestic sewage into the pipeline of a certain concentration of sodium hypochlorite seawater solution produced by electrolysis. After measurement, the concentration of sodium hypochlorite in the mixed ship domestic sewage is 5 ppm. After mixing, the domestic sewage containing 5ppm sodium hypochlorite stays in the overflow tank for 30 minutes to sterilize and oxidize and decompose part of the sodium hypochlorite. After the domestic sewage flows out of the overflow tank, the neutralization unit is used to eliminate residual chlorine, and then discharged.

example 3

[0066] Example 3: First use a crushing pump to crush the larger solid particles in the domestic sewage, lead a road of seawater through the electrolytic cell, and electrolyze to produce a certain concentration of sodium hypochlorite seawater solution. Inject the pulverized ship domestic sewage into the pipeline of a certain concentration of sodium hypochlorite seawater solution produced by electrolysis. After measurement, the concentration of sodium hypochlorite in the mixed ship domestic sewage is 20ppm. After mixing, the domestic sewage containing 20ppm sodium hypochlorite stays in the overflow tank for 30 minutes to sterilize and oxidize and decompose part of the sodium hypochlorite. After the domestic sewage flows out of the overflow tank, the neutralization unit is used to eliminate residual chlorine, and then discharged.

[0067] Table-2 The effect of ship sewage treatment in the embodiment

[0068]

[0069]

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Abstract

The invention discloses equipment for treating ship domestic sewage through an electrolytic process, which comprises a storage tank, a crushing pump, an electrolyzer, an overflow tank and a neutralization unit, wherein the storage tank, the crushing pump and the overflow tank are connected in series in turn; a pipeline behind the crushing pump is connected to a pipeline behind the electrolyzer, and the two pipelines are connected with the overflow tank together; and the neutralization unit is connected to the pipeline behind the overflow tank. The invention also discloses a method for treating ship domestic sewage through an electrolytic process, which comprises the following steps of: crushing large solid particles in the ship domestic sewage; introducing seawater into the electrolyzer, and electrolyzing by using the electrolyzer to generate solution of sodium hypochlorite; injecting the crushed ship domestic sewage into the solution of sodium hypochlorite, introducing mixed solutionof the sodium hypochlorite and the domestic sewage into the overflow tank, and neutralizing residual chlorine in the sewage by using the neutralization unit. The invention has the advantages that: the equipment is small in volume, high in water quality adaptation, easy and convenient to operate and maintain, safe and effective, and is suitable for various ships.

Description

technical field [0001] This patent relates to a treatment technology for domestic sewage from ships, in particular to an equipment and method for treating domestic sewage from ships by electrolysis. Background technique [0002] With the unprecedented development of the shipping industry and marine development, the pollution of the marine environment is becoming more and more serious, and human beings are paying more and more attention to the protection of the marine environment. The problem of domestic sewage pollution caused by shipping has gradually attracted people's attention. As a means of transportation in shipping, ships are a source of mobile pollution. The impact of domestic sewage discharge from ships on oceans and inland rivers cannot be ignored as the number of ships increases. [0003] According to the resolution of MEPC.159.(55) in 2006, the "Revised Guidelines for the Implementation of Effluent Standards and Performance Tests of Domestic Sewage Treatment Pla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/06
Inventor 于青郝少丽刘欣刘雪雷丁慧王海涛刘光洲
Owner SUNRUI MARINE ENVIRONMENT ENG
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