CN105502621A - Method for clearing copper ions in water by using cuttlefish shell - Google Patents
Method for clearing copper ions in water by using cuttlefish shell Download PDFInfo
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- CN105502621A CN105502621A CN201410487392.9A CN201410487392A CN105502621A CN 105502621 A CN105502621 A CN 105502621A CN 201410487392 A CN201410487392 A CN 201410487392A CN 105502621 A CN105502621 A CN 105502621A
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- inkfish
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Abstract
The present invention discloses a method for clearing copper ions in water by using cuttlefish shell. The method is characterized by comprising: washing cuttlefish shell by using water, carrying out natural air drying, grinding into cuttlefish shell powder, adding the cuttlefish shell powder to water containing copper ions, and standing for 2-3 days. According to the present invention, the method is simple, the effect is significant, the copper ion removal rate can achieve 99%, and the method is the economic, effective and environmentally friendly method, and has broad application prospect.
Description
Technical field
The present invention relates to the application of inkfish shell powder, be specially a kind of method applying cupric ion in inkfish shell removing water.
Background technology
In water, the removing of heavy metal ion is the important topic of water resources protection always.Inkfish shell, also known as Os Sepiae, is the dry inner casing of Mollusca Sepiidae animal.Inkfish shell is marine drug, conventional Chinese medicine, and its slightly warm in nature, taste are salty, the effects such as Bearberry Extract, relieving haperacidity, hemostasis.
In life, inkfish shell has often been thrown away, and causes environmental pollution and the wasting of resources.In recent years, extensive concern is caused to the removing research of heavy metal ion in water, shrimp and crab shells (main component is chitin) and derivative chitosan thereof is such as used to remove cupric ion, mainly based on the sequestering action of chitin or chitosan heavy metal ion.And it is less to the research of other marine organisms waste removing heavy metal ion.Primary study inkfish shell removes the performance of cupric ion herein.Experiment basis finds, inkfish shell has significant scavenging(action) to cupric ion, discusses the possible mechanism that inkfish shell removes cupric ion.Have not yet to see the removing research report about inkfish shell heavy metal ion, there is certain new meaning.
Summary of the invention
The object of the present invention is to provide a kind of new thinking to cause environmental pollution and the wasting of resources to solve present inkfish shell and be abandoned, the heavy metal ion particularly problem polluted of cupric ion in water, is used for the removing of cupric ion in water by inkfish shell simultaneously.
Technical scheme of the present invention is:
Apply the method that inkfish shell removes cupric ion in water, it is characterized in that, comprise the following steps:
(3) inkfish shell is washed with water totally, naturally dry, grind to form inkfish shell powder;
(4) described inkfish shell powder is put into the water containing cupric ion, leave standstill 2-3 days.
Preferably, described inkfish shell powder footpath is at 0-200 order.
Preferably, in inkfish shell powder and water, the mass ratio of cupric ion is 25-50:1.
Although aforesaid method of the present invention is simple, Be very effective, the clearance of cupric ion can reach 99%, and method of the present invention is a kind of economical and efficient and eco-friendly method, and having very can the application prospect of phase.
Accompanying drawing explanation
Fig. 1 is the change curve of copper-bath specific conductivity with concentration.
Fig. 2 represent respectively different mass two inkfish shell samples (a and b) and 10mL5% copper-bath fully act on the conductivity variations of rear filtrate.
Fig. 3 is the change of specific conductivity before and after inkfish shell is removed different concns copper-bath.
Fig. 4 removes the impact of copper ion solution specific conductivity to inkfish shell action time.
Embodiment
The present invention's laboratory apparatus used: electronic balance (0.1mg), digital conductivity meter (DDS-11H type, Shanghai great Pu Instrument Ltd.), cupric ion tester (T-1A type, Shanghai Haizheng Electronic Technology Co., Ltd., range 0-2mg/L), circulation vacuum pump.
Embodiment:
(1) inkfish shell powder preparation:
Taken out by fresh inkfish shell, washing is clean, naturally dries, grinds to form inkfish shell powder, crosses 200 mesh sieves, for subsequent use;
(2) inkfish shell powder removes cupric ion method:
Take 1.0g, 0.75g, 0.5g, 0.25g, 0.125g inkfish shell powder respectively and be placed in Erlenmeyer flask, respectively add 5% copper-bath 10ml, sealing fully mixes 2 days, and there is a small amount of gas overflowing period, and powder becomes blue gradually.Respectively vacuum filtration afterwards, gets filter cake and filtrate is for subsequent use.
(3) copper ion concentration measures:
The solution that different mass inkfish shell is removed before and after cupric ion is suitably diluted, adopts cupric ion analysis-e/or determining copper ion concentration.
(4) electrical conductivity of solution analysis before and after cupric ion is removed:
Measure the specific conductivity of different mass concentration sulphuric acid copper solutions (5%, 4%, 3%, 2%, 1%, 0.5%, 0.25%, 0.125%) respectively, set up the relation between specific conductivity and copper-bath concentration.Measure the specific conductivity of solution before and after removing respectively, according to relationship analysis elimination effect between specific conductivity and copper-bath concentration.As seen from Figure 1, the specific conductivity of copper-bath increases along with the increase of concentration, but non-linear relation in concentration range below 5%.Specific conductivity is relevant with the ionic concn in solution, and the larger specific conductivity of ionic concn is higher.Therefore, the effect of cupric ion can be removed by the mutation analysis of electrical conductivity of solution.
(5) inkfish shell powder removes cupric ion effect:
1) inkfish shell opaque amount affects cupric ion elimination effect
Fig. 2 represent respectively different mass two inkfish shell samples (a and b) and 10mL5% copper-bath fully act on the conductivity variations of rear filtrate.As seen from Figure 2, after adding 0.125g inkfish shell powder, after removing cupric ion, namely the specific conductivity of filtrate significantly reduces; Along with inkfish shell consumption increases, the specific conductivity of filtrate slightly declines.
Table 1 is the change that different amounts inkfish shell removes copper ion concentration in solution before and after cupric ion.As shown in Table 1, along with the increase of inkfish shell consumption, in filtrate, copper ion concentration significantly declines, and cupric ion maximal clearance reaches 99.7%.
Table 1 inkfish shell removes cupric ion effect
Filter cake after the inkfish shell powder removing cupric ion of different mass becomes blueness by the inkfish shell powder of original white, illustrates that cupric ion be combined with each other with inkfish shell powder.Experiment shows that blue filter cake is water insoluble, and heats at 80 DEG C and still disengage without cupric ion for 3 hours, illustrates that inkfish shell is combined closely with cupric ion.
2) copper-bath concentration removes the impact of cupric ion effect on inkfish shell
Interact 2 days with the copper-bath of 10mL different concns respectively with 0.25g inkfish shell powder, filter and obtain filtrate and filter cake, after removing cupric ion, the specific conductivity of filtrate and the specific conductivity of copper-bath contrast as shown in Figure 3.
As seen from Figure 3, remove the specific conductivity of filtrate after cupric ion significantly lower than copper-bath, electrical conductivity of solution can decline 56%-88%; And along with the increase of concentration of copper sulfate, the elimination effect of inkfish shell to cupric ion obviously strengthens.
3) inkfish shell is removed to the impact of cupric ion effect action time
Experimentation finds, inkfish shell removes cupric ion and time correlation, two-way interaction's time longer (after one week), does not almost observe the color of cupric ion in filtrate.Therefore, the impact of cupric ion effect is removed in research action time on inkfish shell powder further.By the copper-bath interaction different time (2 days-10 days) of 0.25g inkfish shell powder and 10mL5%, measure the specific conductivity removing solution before and after cupric ion, as shown in Figure 4, electrical conductivity of solution can decline 85%-90% result.Remove the specific conductivity that effectively can reduce cupric ion in solution for 2 days, afterwards along with the time increases, little on the specific conductivity impact of solution after removing cupric ion.
Claims (3)
1. apply the method that inkfish shell removes cupric ion in water, it is characterized in that, comprise the following steps:
(1) inkfish shell is washed with water totally, naturally dry, grind to form inkfish shell powder;
(2) described inkfish shell powder is put into the water containing cupric ion, leave standstill 2-3 days.
2. application inkfish shell according to claim 1 removes the method for cupric ion in water, and it is characterized in that, described inkfish shell powder footpath is at 0-200 order.
3. application inkfish shell according to claim 1 removes the method for cupric ion in water, it is characterized in that, in inkfish shell powder and water, the mass ratio of cupric ion is 25-50:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410487392.9A CN105502621A (en) | 2014-09-22 | 2014-09-22 | Method for clearing copper ions in water by using cuttlefish shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410487392.9A CN105502621A (en) | 2014-09-22 | 2014-09-22 | Method for clearing copper ions in water by using cuttlefish shell |
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| CN105502621A true CN105502621A (en) | 2016-04-20 |
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| CN201410487392.9A Pending CN105502621A (en) | 2014-09-22 | 2014-09-22 | Method for clearing copper ions in water by using cuttlefish shell |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101690882A (en) * | 2009-10-14 | 2010-04-07 | 南开大学 | Natural adsorbent for removing heavy metal ions in water and preparation method and application thereof |
| CN102000552A (en) * | 2010-12-06 | 2011-04-06 | 河海大学 | Novel heavy metal adsorbent mainly prepared from shrimp shells and preparation method thereof |
| CN103551119A (en) * | 2013-11-07 | 2014-02-05 | 福建省水产研究所 | Oyster shell heavy metal ions absorbent and preparation method thereof |
-
2014
- 2014-09-22 CN CN201410487392.9A patent/CN105502621A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101690882A (en) * | 2009-10-14 | 2010-04-07 | 南开大学 | Natural adsorbent for removing heavy metal ions in water and preparation method and application thereof |
| CN102000552A (en) * | 2010-12-06 | 2011-04-06 | 河海大学 | Novel heavy metal adsorbent mainly prepared from shrimp shells and preparation method thereof |
| CN103551119A (en) * | 2013-11-07 | 2014-02-05 | 福建省水产研究所 | Oyster shell heavy metal ions absorbent and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 张柏林等: "《生物技术与食品加工》", 31 March 2005 * |
| 张树强: "甲壳素去除水体中金属离子的性能研究", 《广东水利水电》 * |
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Application publication date: 20160420 |