Method for strengthening sponges to enrich heavy metal in seawater

A technology for heavy metals and seawater, applied in chemical instruments and methods, biological water/sewage treatment, water/sludge/sewage treatment, etc. The effect of benefit and social benefit

Inactive Publication Date: 2010-06-09
DALIAN FISHERIES UNIVERSITY
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Problems solved by technology

[0002] Sponge is a marine benthic filter-feeding invertebrate, which has the ability to actively pump seawater and retain substances in seawater. At present, it has been applied to seawater purification, but only limited to the purification of tangible impurities in seawater. There is no effective and economical solution to the increasingly serious problem of heavy metal pollution in seawater

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  • Method for strengthening sponges to enrich heavy metal in seawater

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experiment example

[0012] Strengthen the sponge enrichment of heavy metal ions (Cd 2 ) Ability experiment:

[0013] 500mL of natural seawater filtered with 0.22μm filter membrane in advance was poured into 7 1L conical flasks, and then 0.25mg of CdCl was added 2 , Get 0.5mg / L CdCl 2 Of sterilized natural sea water. One of the cone-shaped flasks was used as a control; three of the remaining 6 cone-shaped flasks were added with equilateral golden algae, and the initial equilateral golden algae density was 50×10 4 cells / mL; the other three conical flasks remain unchanged. When the density of the equilateral golden algae in the three conical flasks is close to 800×10 4 After cells / mL, put about 2.5g of luxuriant membrane sponge block into these three conical flasks and the remaining three other conical flasks. In the experiment, a hemocytometer was used to detect the density of the seawater mesophyllum; the sponge was weighed before and after the experiment, and the Cd in the sample was analyzed with a...

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Abstract

The invention discloses a method for strengthening sponges to enrich heavy metal in seawater, which is characterized in that the method comprises the following steps: collecting hymeniacidon perleve in an intertidal zone sea area; after being washed with natural seawater, putting the hymeniacidon perleve into an aerated aquarium with flowing natural seawater to be temporarily fostered while the temperature is 13-23 DEG C and the density is 1-3 g-sponge/ L-seawater volume; putting equilateral chrysophyceae into seawater; adding sponges when the equilateral chrysophyceae grows to 700-900 thousand frustules / ml seawater, wherein the density of the sponges is 5-7 g-sponge/ L-seawater volume. The invention has simple program and convenient operation, can be used for purification treatment to heavy metal in cultivation pollution discharge water body, can be used for purifying coastwise open seawater environment, can obviously purify seawater body and improve marine ecological environment, is effective and economic and can produce great economic benefit and social benefit.

Description

Technical field: [0001] The invention relates to the field of seawater purification, in particular to an effective and economical method for enhancing the concentration of heavy metals in seawater by a sponge which can significantly improve the quality of seawater. Background technique: [0002] Sponge is a kind of marine benthic filter-feeding invertebrate. It has the ability to actively pump seawater and retain substances in seawater. At present, it has been used in seawater purification, but it is only limited to the purification of tangible impurities in seawater. There is no effective and economical solution to the increasingly serious problem of heavy metal pollution in seawater. Summary of the invention: [0003] The present invention is to solve the above-mentioned technical problems in the prior art, and provide an effective and economical method for enhancing the concentration of heavy metals in seawater by a sponge that can significantly improve the quality of seawater....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/32A01K61/00
CPCY02A40/81
Inventor 付晚涛苏延明王刚
Owner DALIAN FISHERIES UNIVERSITY
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