CN103159278A - Method for recovering Pb<2+> from electrolytic zinc rinsing wastewater with calcium-carbonate-modified kieselguhr - Google Patents

Method for recovering Pb<2+> from electrolytic zinc rinsing wastewater with calcium-carbonate-modified kieselguhr Download PDF

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Publication number
CN103159278A
CN103159278A CN2013101163923A CN201310116392A CN103159278A CN 103159278 A CN103159278 A CN 103159278A CN 2013101163923 A CN2013101163923 A CN 2013101163923A CN 201310116392 A CN201310116392 A CN 201310116392A CN 103159278 A CN103159278 A CN 103159278A
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China
Prior art keywords
electrolytic zinc
solution
carbonate
calcium
calcium carbonate
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CN2013101163923A
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Chinese (zh)
Inventor
陈南春
解庆林
周海妙
杨利姣
高军
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桂林理工大学
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Priority to CN2013101163923A priority Critical patent/CN103159278A/en
Publication of CN103159278A publication Critical patent/CN103159278A/en

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    • Y02P10/212

Abstract

The invention discloses a method for recovering Pb<2+> from electrolytic zinc rinsing wastewater with calcium-carbonate-modified kieselguhr, which comprises the following steps:(1) adding 10g of fine kieselguhr into 50mL of 0.4-0.5 mol/L Na2CO3 solution, putting in a rotary thermostatic water bath oscillator, stirring, and dropwisely adding 5-5.2 mL of saturated CaCl2; after stirring, taking out, removing the supernatant solution, carrying out vacuum filtration, washing with pure water to a neutral state, centrifuging for solid-liquid separation, drying, pulverizing, and passing through a 200-mesh sieve to prepare a calcium-carbonate-modified kieselguhr adsorbent; and (2) adding 10mL of 0.1 g/L calcium-carbonate-modified kieselguhr adsorbent prepared in the step (1) into a 250 mL a conical flask with a stopper, adding 100mL of Pb<2+>-containing electrolytic zinc rinsing wastewater solution with the pH value of 4.83-4.85, adsorbing at 25-30 DEG C for 120-125 minutes, plugging, and oscillating in the rotary thermostatic water bath oscillator at the speed of 150 r/min to adsorption equilibrium. The invention can be used for recovering Pb<2+> from electrolytic zinc rinsing wastewater, and enhances the recovery rate.

Description

Calcium carbonate modified diatomite reclaims Pb from the electrolytic zinc poaching wastewater 2+Method

Technical field

The present invention relates to the calcium carbonate modified diatomite of a kind of use and reclaimed Pb from the electrolytic zinc poaching wastewater 2+Method.

Background technology

Contain heavy metal Pb 2+Waste water be mainly derived from the percolate of metallurgy, plating, battery and solid refuse landfill yard.The discharge of wastewater of heavy metal ion can only change its form or is transferred, dilutes and accumulate in environment, but can not be degraded, thereby very harmful.The all toxic effects of a lot of systems to human body of lead and compound thereof can damage large mesencephalic centre and peripheral nervous system, initiation myocardial damage, affect digestive system function.

Diatomite is a kind of biogenic silicastone, main by the diatoms remains through the fixed placer deposits that forms of silication.But natural diatomite adsorption capacity is little, often needs diatomite is carried out modification.Therefore, research adopts the calcium carbonate with adsorptive power to diatomite modified, studies calcium carbonate modified By Diatomite Pb 2+Recovery, reclaim Pb from the electrolytic zinc poaching wastewater 2+, improve the rate of recovery, effectively utilize the Mineral resources of China, to the recovery of valuable metal, similarly the research of design of new processes and exploitation has very major and immediate significance, has many benefits on technology, science and industrial economy.Also meet simultaneously the current national industry policy.

Summary of the invention

The purpose of this invention is to provide the calcium carbonate modified diatomite of a kind of use and reclaim Pb from the electrolytic zinc poaching wastewater 2+Method.

Concrete steps are:

(1) getting 10g diatomite essence soil (after purifying), to join 50 mL concentration be the Na of 0.4-0.5mol/L 2CO 3In solution, put into Clothoid type water bath with thermostatic control vibrator, 25-30 ℃, stir with 145-150r/min, slowly drip the saturated CaCl of 5-5.2mL 2Continue to stir after 30-35 minute and take out, remove upper solution, vacuum filtration, more extremely neutral with the pure water washing, the centrifugal solid-liquid separation that makes is got solid and is dried under 105 ℃, pulverizes 200 mesh sieve, prepares calcium carbonate modified diatomite adsorbant.

(2) be that the calcium carbonate modified diatomite adsorbant that the step (1) of 0.1g/L makes is put into 250mL tool plug Erlenmeyer flask with 10mL concentration, add 100mL pH value to be the Pb that contains of 4.83-4.85 2+Electrolytic zinc poaching wastewater solution, adsorption time are 120-125 minute, and adsorption temp is 25-30 ℃, after adding a cover in the Clothoid type water-bath constant temperature oscillator with the speed oscillation of 150r/min to adsorption equilibrium.

(3) with step (2) gained solution with 0.45 μ m membrane filtration in the 10mL centrifuge tube, measure Pb in filtrate with atomic absorption spectrophotometry 2+Mass concentration; Pb 2+The rate of recovery reach 93-94%.

The present invention reclaims Pb from the electrolytic zinc poaching wastewater 2+, improved the rate of recovery, effectively utilize the Mineral resources of China, to the recovery of valuable metal, have many benefits on technology, science and industrial economy.Also meet simultaneously the current national industry policy.

Description of drawings

Fig. 1 is the scanning electron microscope (SEM) photograph of embodiment of the present invention diatomite essence soil.

Fig. 2 is the calcium carbonate modified diatomaceous scanning electron microscope (SEM) photograph of the embodiment of the present invention.

Embodiment

Embodiment:

(1) getting 10g diatomite essence soil (after purifying), to join 50 mL concentration be the Na of 0.4mol/L 2CO 3In solution, put into Clothoid type water bath with thermostatic control vibrator, 25 ℃, stir with 150r/min, slowly drip the saturated CaCl of 5mL 2Continue to stir after 30 minutes and take out, remove upper solution, vacuum filtration, more extremely neutral with the pure water washing, the centrifugal solid-liquid separation that makes is got solid and is dried under 105 ℃, pulverizes 200 mesh sieve, prepares calcium carbonate modified diatomite adsorbant.

(2) be that the calcium carbonate modified diatomite adsorbant that the step (1) of 0.1g/L makes is put into 250mL tool plug Erlenmeyer flask with 10mL concentration, adding 100mL pH value is 4.83 the Pb that contains 2+Electrolytic zinc poaching wastewater solution, adsorption time are 120 minutes, and adsorption temp is 25 ℃, after adding a cover in the Clothoid type water-bath constant temperature oscillator with the speed oscillation of 150r/min to adsorption equilibrium.

(3) with step (2) gained solution with 0.45 μ m membrane filtration in the 10mL centrifuge tube, measure Pb in filtrate with atomic absorption spectrophotometry 2+Mass concentration, Pb 2+The rate of recovery reach 94%.

Claims (1)

1. one kind is reclaimed Pb with calcium carbonate modified diatomite from the electrolytic zinc poaching wastewater 2+Method, it is characterized in that concrete steps are:
(1) getting 10g diatomite essence soil, to join 50 mL concentration be the Na of 0.4-0.5mol/L 2CO 3In solution, put into Clothoid type water bath with thermostatic control vibrator, 25-30 ℃, stir with 145-150r/min, slowly drip the saturated CaCl of 5-5.2mL 2Continue to stir after 30-35 minute and take out, remove upper solution, vacuum filtration, more extremely neutral with the pure water washing, the centrifugal solid-liquid separation that makes is got solid and is dried under 105 ℃, pulverizes 200 mesh sieve, prepares calcium carbonate modified diatomite adsorbant;
(2) be that the calcium carbonate modified diatomite adsorbant that the step (1) of 0.1g/L makes is put into 250mL tool plug Erlenmeyer flask with 10mL concentration, add 100mL pH value to be the Pb that contains of 4.83-4.85 2+Electrolytic zinc poaching wastewater solution, adsorption time are 120-125 minute, and adsorption temp is 25-30 ℃, after adding a cover in the Clothoid type water-bath constant temperature oscillator with the speed oscillation of 150r/min to adsorption equilibrium.
CN2013101163923A 2013-04-07 2013-04-07 Method for recovering Pb<2+> from electrolytic zinc rinsing wastewater with calcium-carbonate-modified kieselguhr CN103159278A (en)

Priority Applications (1)

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CN2013101163923A CN103159278A (en) 2013-04-07 2013-04-07 Method for recovering Pb<2+> from electrolytic zinc rinsing wastewater with calcium-carbonate-modified kieselguhr

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Application Number Priority Date Filing Date Title
CN2013101163923A CN103159278A (en) 2013-04-07 2013-04-07 Method for recovering Pb<2+> from electrolytic zinc rinsing wastewater with calcium-carbonate-modified kieselguhr

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103641245A (en) * 2013-12-27 2014-03-19 姚为 Papermaking wastewater treating agent and preparation method thereof
CN103641247A (en) * 2013-12-27 2014-03-19 姚为 Domestic sewage treatment agent and preparation method thereof
CN108249453A (en) * 2018-03-05 2018-07-06 西陇科学股份有限公司 A kind of preparation of modification infusorial earth and its method for being used to prepare high-purity boracic acid

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101357798A (en) * 2007-07-31 2009-02-04 深圳市邦友通科技有限公司 Heavy metal wastewater purificant

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101357798A (en) * 2007-07-31 2009-02-04 深圳市邦友通科技有限公司 Heavy metal wastewater purificant

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
夏士朋等: "改性硅藻土处理废水中重金属离子", 《河南化工》 *
蔡慧林等: "碳酸钙改性硅藻土的制备及其吸附性能研究", 《广州化工》 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103641245A (en) * 2013-12-27 2014-03-19 姚为 Papermaking wastewater treating agent and preparation method thereof
CN103641247A (en) * 2013-12-27 2014-03-19 姚为 Domestic sewage treatment agent and preparation method thereof
CN103641245B (en) * 2013-12-27 2016-02-10 汕头市龙湖区粤安纸业有限公司 A kind of paper-making waste water treating agent and preparation method thereof
CN103641247B (en) * 2013-12-27 2016-04-06 沧州市利达环保工程有限公司 One way of life sewage-treating agent and preparation method thereof
CN108249453A (en) * 2018-03-05 2018-07-06 西陇科学股份有限公司 A kind of preparation of modification infusorial earth and its method for being used to prepare high-purity boracic acid
CN108249453B (en) * 2018-03-05 2019-09-03 西陇科学股份有限公司 A kind of method of modification infusorial earth prepared and its be used to prepare high-purity boracic acid

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