Novel energy conservation and environment protection process for realizing mutualistic symbiosis of straw pulping and papermaking industry and waste lead-acid cell recycling industry

A technology for pulping and papermaking and lead-acid batteries, which is applied in the field of comprehensive resource utilization, energy conservation and environmental protection, can solve the problems of heavy pollution and high energy consumption, achieve the effects of protecting the environment, avoiding straw burning, and increasing industrial economic benefits

Active Publication Date: 2015-06-03
尚圣杰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, these two industries have the problems of high energy consumption and heavy pollution, and both have common needs for energy conservation and environmental protection

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 1) The wastewater generated in the process of straw pulping and papermaking is firstly filtered and flocculated for repeated recycling, and the alkali-containing black liquor wastewater that cannot be recycled is put into the alkaline wastewater collection pool, and the flocculant is put in for precipitation, and the sludge is used to The pump transports the sediment to the filter press equipment for a first-stage filter press, and the filtrate is recycled to the alkaline wastewater collection tank; then the filtered sediment is added to clean water and an appropriate amount of sulfuric acid to stir and mix for neutralization reaction, so that the pH of the sediment sludge The value is close to neutral, and then carry out secondary pressure filtration, and the filtrate is recovered to the alkaline wastewater collection tank; most of the neutral sediment obtained by secondary pressure filtration is lignin, and the rest are sugars, organic acids and a small amount of inorga...

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PUM

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Abstract

The invention discloses a novel energy conservation and environment protection process for realizing the mutualistic symbiosis of a straw pulping and papermaking industry and a waste lead-acid cell recycling industry. According to the alkaline characteristic of the straw pulping sewage, the acidic characteristic of the waste lead-acid cell recycling sewage, and the condition of the coupling utilization space of the after heat, the energy conservation and environment protection process for realizing the mutualistic symbiosis for comprehensive coupling processing the acid-alkali wastewater and complementarily using the heat energy is provided. By adopting the process, the pollution abatement cost and the difficulty of the two industries can be greatly reduced, the energy complementary utilization is realized and the mutualistic symbiosis of two industries is obtaind. By adopting the process, the complementary utilization of the energy sources of two distant related industries is realized, the alkaline black liquid generated by the straw pulping industry and the leaded acidic wastewater generated by the regenerated lead industry can be completely recycled and utilized, so that the problem of high processing cost of the sewages in two industries can be solved and the economic benefits of two industries can be effectively increased.

Description

technical field [0001] The invention relates to the technical field of comprehensive utilization of resources, energy saving and environmental protection, in particular to a new technology for energy saving and environmental protection that realizes the symbiosis and win-win of the two industries of straw pulping and papermaking and waste lead-acid battery regeneration. Background technique [0002] With the improvement of rural living standards, the era of straw as firewood has passed. As a result, a large amount of straw has been piled up in the fields, affecting cultivation, and farmers are forced to burn it. According to the survey, the annual output of straw in my country is about 1 billion tons. Direct burning of a huge amount of straw not only wastes straw resources that can be turned from waste into treasure, but also causes serious harm, causing serious air pollution, causing traffic accidents, affecting road traffic and Aviation safety, but also damage the soil stru...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04B01D50/00B01D53/78B01D53/62B01D53/50C01D5/14C22B7/00C22B13/00C05F7/00
CPCB01D50/00B01D53/50B01D53/62B01D53/78F22B1/18F23G7/00F27D17/00C22B7/00C22B13/00C01D5/14C02F9/00C02F11/12C02F11/14C05F7/00C02F1/001C02F1/66C02F1/52C02F1/74C02F2303/26C02F2301/00F23G2201/20F23G2201/304Y02A40/20Y02P10/20Y02P20/10
Inventor 尚圣杰刘茵茹
Owner 尚圣杰
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