Unlock instant, AI-driven research and patent intelligence for your innovation.

Purification treatment method of waste liquid containing formalin or formaldehyde and glutaraldehyde

A formalin, purification and treatment technology, applied in chemical instruments and methods, water/sewage treatment, neutralized water/sewage treatment, etc., can solve problems such as limited treatment capacity

Inactive Publication Date: 2013-12-04
UI CHEM KK
View PDF4 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is limited in its ability to handle

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
  • Purification treatment method of waste liquid containing formalin or formaldehyde and glutaraldehyde

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] In the purification treatment method of the present invention, a preferred embodiment is to directly pour the composition of acidic sodium sulfite and trisodium phosphate into the waste liquid containing formalin or formaldehyde or glutaraldehyde. When containing formalin concentration is 10% or containing formaldehyde concentration is 3.7~4%, to 4 liters of waste liquid, add the composition of the present invention of 700 grams, its chemical formula is as follows:

[0012]

[0013] After standing for 15 minutes, the reaction product of formalin or formaldehyde or glutaraldehyde and acidic sodium sulfite is a compound with the same properties as sodium chloride (NaCl). This compound is environmentally friendly and will not Pollution, it can be safely discarded.

[0014] In addition, in order to facilitate the treatment of a small amount of waste liquid containing formalin, formaldehyde, and glutaraldehyde, the present invention can dissolve the composition of acidic ...

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 purification treatment method of a waste liquid containing formalin or formaldehyde and glutaraldehyde, and particularly relates to a treatment manner using a composition of acidic sodium sulfite (NaHSO3) and trisodium phosphate (Na3PO4) to add to the waste liquid for neutralizing the waste liquid containing the formalin or the formaldehyde and the glutaraldehyde. The purification treatment method can quickly deactivate the formalin or the formaldehyde and the glutaraldehyde in the waste liquid in real time to achieve harmless emission effects, and has high utilization value in industry.

Description

technical field [0001] The invention relates to a method for purifying waste liquid, in particular to a method for purifying and treating waste liquid containing formalin, formaldehyde and glutaraldehyde in a harmless manner by using a chemical treatment method. Background technique [0002] Formalin or formaldehyde and glutaraldehyde are widely used in units performing medical services, mainly for general tissue fixation in pathological tissue examination, anatomical examination, and experimental animal pathological research. In addition, it is also commonly used for disinfection of surgical instruments and equipment. The waste liquid generated after use was directly discharged into rivers or sewers in the early stage, but the waste liquid is toxic and often causes great harm to the environment. Liquids need to be treated before they can be discharged. Prior art comprises for formalin and the processing method containing formalin preparation: [0003] (a) Acidification m...

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): C02F1/66C02F1/58C02F101/34
Inventor 牛尾省三
Owner UI CHEM KK