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Heavy metal ion adsorbent preparation method

A technology of heavy metal ions and adsorbents, applied in chemical instruments and methods, adsorption water/sewage treatment, metallurgical wastewater treatment, etc., can solve problems such as hazards, heavy metal environmental pollution, public hazards, etc., and achieve the effect of wide sources and low cost

Inactive Publication Date: 2015-10-21
刘雷
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

In this new technology, it uses recycled material that contains harmful substances like lead or mercury. These contaminants have been found on many items used throughout our country's history such as batteries made up mostly of these elements. By adding an extra element called Cadmium (Cd), we get ridged any negative side consequences associated with their use.

Problems solved by technology

This patents discusses different ways how heavy metallic contamination affects both people's health and their economics when released from industrial processes. These issues include direct release through disposable products like plastic bags used during handling, which may contain residual amounts of this material over time, potential safety hazards associated with high levels of exposure, and negative impact upon local communities where there could have been accidentally exposed to excessive quantities of heavymetals. Additionally, some sources require strict regulations regarding the amount of heavy Metals allowed within acceptable limits while others limit its use based on factors like cost efficiency.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A preparation method of a heavy metal ion adsorbent, the specific steps are:

[0019] (1) Add 80 parts by weight of pine plant waste crushed to 200 meshes in 80 parts by weight of activated sludge from urban sewage treatment plants; then heat and carbonize for 40 minutes in a carbonization furnace at a temperature of 550 ° C to obtain a high-temperature carbonized solid product ;

[0020] (2) Add 80 parts by weight to the peat soil of 80 parts by weight and pulverize to 200 order Pinaceae plant waste; Then add the pickling wastewater used to remove scale and rust on the steel surface, and configure the water content to be 70% mixed slurry;

[0021] (3) The high-temperature carbonized solid product obtained in step (1) is directly added to the mixed slurry obtained in step (2) after being released from the furnace, and then microwaved for 1.5 hours while stirring, wherein the frequency of microwave processing is 1200MHz; and then cooled in turn , drying and pulverizing...

Embodiment 2

[0023] A preparation method of a heavy metal ion adsorbent, the specific steps are:

[0024] (1) Add 40 parts by weight to 120 parts by weight of urban sewage treatment plant activated sludge and crush it to 280 mesh Pinaceae plant waste; then heat and carbonize in a carbonization furnace at 850°C for 20 minutes to obtain a high-temperature carbonized solid product ;

[0025] (2) Add 40 parts by weight to the peat soil of 120 parts by weight and crush to 280 order Pinaceae plant waste; Then add the pickling wastewater used to remove scale and rust on the steel surface, and configure the water content to be 90% mixed slurry;

[0026] (3) The high-temperature carbonized solid product obtained in step (1) is directly added to the mixed slurry obtained in step (2) after being released from the furnace, and then microwaved for 0.5 hours while stirring, wherein the frequency of microwave processing is 3600MHz; and then cooled in turn , drying and pulverizing to obtain the heavy me...

Embodiment 3

[0028] A preparation method of a heavy metal ion adsorbent, the specific steps are:

[0029] (1) Add 60 parts by weight to 100 parts by weight of urban sewage treatment plant activated sludge, and mix 60 parts by weight of pinaceae plant waste that is crushed to 200 meshes; then heat and carbonize in a carbonization furnace at a temperature of 700 ° C for 30 minutes to obtain a high-temperature carbonized solid product ;

[0030] (2) Add 60 parts by weight to the peat soil of 100 parts by weight and crush to 200 order Pinaceae plant waste; then add the pickling wastewater used to remove scale and rust on the steel surface, and configure the water content to be 80% mixed slurry;

[0031] (3) The high-temperature carbonized solid product obtained in step (1) is directly added to the mixed slurry obtained in step (2) after being discharged from the oven, and then microwaved for 1 hour while stirring, wherein the frequency of microwave processing is 2400 MHz; and then cooled in t...

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Abstract

The present invention discloses a heavy metal ion adsorbent preparation method, comprising the specific steps of: fitting pinaceae plants waste into activated sludge in a municipal sewage treatment plant; then performing heating and carbonizing in a carbonization furnace,to obtain a high temperature carbonized solid product; fitting the pinaceae plants waste into peat soil; then adding pickling wastewater, to configure mixed slurry; directly adding the high temperature carbonized solid product output from the furnace into the mixed slurry, and then performing stirring and microwave treatment at the same time; and performing cooling, drying, and grinding in turn, to obtain the heavy metal ion adsorbent. According to the present invention, all the raw materials come form the waste, the source thereof is widely available, and the cost is low; a laboratory removal rate of the heavy metal ion adsorbent prepared by the present invention on a plurality of heavy metals can reach over 95%; and the heavy metal ion adsorbent also has an outstanding effect on a plurality of heavy metals in electroplating sewage of electroplating enterprises, and can meet the requirements of the national primary standard.

Description

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Claims

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Application Information

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Owner 刘雷
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