Method for treating container washing wastewater

A treatment method and container technology, applied in flotation water/sewage treatment, oxidized water/sewage treatment, multi-stage water/sewage treatment, etc., can solve the problems of large water quality changes, high suspended solids and oil content indicators, and tank washing Solve problems such as complex wastewater components, achieve the effects of reducing suspended solids, saving water resources, and reducing environmental pollution

Inactive Publication Date: 2010-05-19
TIANJIN TANGGU XINYU ENVIRONMENTAL PROTECTION TECH
View PDF1 Cites 27 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] ① The composition of tank washing wastewater is complex, and the water quality changes greatly;
This method removes toxic and harmful substances, and the main pollutant indicators of the treated effluent

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

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0036] Below in conjunction with accompanying drawing 1, the present invention is further described in detail through specific embodiments, the following embodiments are only descriptive, not restrictive, and cannot limit the protection scope of the present invention.

[0037] The treatment methods of container washing wastewater include pretreatment, physicochemical treatment, biochemical treatment, advanced treatment and sludge treatment in turn. The treatment processes are as follows:

[0038] 1. Pretreatment: Pretreatment includes grease trap and conditioning pool.

[0039] The main purpose of the pretreatment of the present invention is to remove large suspended solids and floating oil substances, and to adjust the water quality and quantity, which is beneficial to the subsequent stable treatment.

[0040] The grease trap is used to remove suspended solids and oil slicks in the wastewater. Since the density of oil is smaller than that of water, when the oily wastewater fl...

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 relates to a method for treating container washing wastewater, comprising the pretreatment, physical and chemical treatment, biochemical treatment and advanced treatment, wherein the pretreatment comprises the step of filtering suspended matter and oil slick out by an oil separation tank and a collected water regulating reservoir so as to homogenize water quality and water quantity; the physical and chemical treatment comprises the step of removing oil substances and COD by an air flotation device; the biochemical treatment comprises the step of removing hazardous and noxious substances by an AF anaerobic filter chamber and an SBR reaction tank; and the advanced treatment comprises the steps of degrading organic matters and sterilizing by a moving bed biomembrane reactor and an ozone catalyzing oxidation pond, wherein the treated wastewater serves as washing water after reaching normal water reuse standards. The invention not only treats the container washing wastewater containing oil, poisonous substances and organic hazardous chemicals into clear water meeting the national discharging standards and discharging standards in Tianjin, but also reduces the content of the suspended matters and oils, and saves water resources because the clear water after being treated can serve as the reuse clear water.

Description

technical field [0001] The invention belongs to the technical field of waste water treatment, in particular to a treatment method for container washing waste water. Background technique [0002] With the development of the world economy, trade globalization has become an irreversible trend, and the container transportation business has continued to expand, which has promoted the development of import and export trade, but at the same time it has also brought about the problem of mutual pollution of container transportation goods. Especially for containers that carry toxic and dangerous goods and chemicals, the waste water produced during the cleaning process has complex components and contains toxic and harmful substances. If it is not handled properly, it will pose a threat to the environment and human health. [0003] The main characteristics of the waste water produced by cleaning and shipping toxic and dangerous goods and chemical containers are: [0004] ① The composit...

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
IPC IPC(8): C02F9/14C02F3/28C02F1/78C02F1/76C02F1/50C02F1/40C02F1/24
Inventor 杨宗政孙铁军
Owner TIANJIN TANGGU XINYU ENVIRONMENTAL PROTECTION TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products