CN1850629A

CN1850629A - Method and use for inhibiting red tide algae by enteromorpha

Info

Publication number: CN1850629A
Application number: CN 200610044586
Authority: CN
Inventors: 李锋民; 王震宇; 安蓁
Original assignee: Ocean University of China
Current assignee: Ocean University of China
Priority date: 2006-05-26
Filing date: 2006-05-26
Publication date: 2006-10-25
Anticipated expiration: 2026-05-26
Also published as: CN100372779C

Abstract

The invention belongs to the water processing field, especially relating to a method and application of inhibiting red tide alga with Enteromorpha linza, and the method: firstly crushing Enteromorpha linza plants into grains or powders, then placing them into nylon bags with good water permeability, and casting the nylon bags into to-be-processed sea water in the proportion of 0.5-2 g per L sea water, after several days, taking out the nylon bags from the water body to avoid secondary pollution. And its inhibition ratio of red tide alga growth is above 95%. And the Enteromorpha linza is crushed of Enteromorpha linza plants. And the invention has advantages of good alga inhibition effect, convenient to operate, easy to control, good ecological safety, etc, and can be widely applied to various water bodies to implement control of red tide.

Description

The methods and applications of inhibiting red tide algae by enteromorpha

Technical field

The invention belongs to water treatment field, relate in particular to a kind of methods and applications of inhibiting red tide algae by enteromorpha.

Background technology

After Lu Yuan nutritive substance and ocean operation discharging and the pollutent that leaks enter ocean water body, causing the seawater eutrophication, is the major cause that ocean environment worsens.Eutrophication causes the explosive growth of red tide algae, can reduce the dissolved oxygen of seawater, brings massive losses for the aquatic products aquaculture.Some algae can also produce the algae toxin, and feed water lively thing and human beings'health are brought harm.Middle Skeletonemacostatum is the coastal common and main red tide algae in Eastern China, therefore usually with the representative of middle Skeletonemacostatum as the red tide algae.

Existing red tide suppresses technology and mainly comprises cupric ion method, modified clay method and microbial method.Existing cupric ion (the Cu that utilizes ²⁺) to kill the red tide algae be to use the most sophisticated a kind of red tide inhibition technology, but cupric ion in water body, can not degrade, can in the ecosystem, transmit by food chain, and copper ion concentration high more (the biological amplification) in the high more organism of trophic level.If the edible enrichment of people the hydrocoles of cupric ion, can be detrimental to health.Weedicide can be killed other plant in the Marine ecosystems when killing the red tide algae, make water ecosystem destroyed, and ecological functions disappear.Clay can adsorb red tide algae dust kicked up by somebody walking in front and drop to the seabed, thus the growth of control red tide algae.But the clay consumption is big, causes trucking costs big, thereby has limited the use of this method.Utilize some specificity to infect the bacterium of red tide algae or virus (phycophage) though also can suppress the growth of red tide algae within the specific limits, but these microbial growths are difficult to regulation and control, thereby utilize it to suppress that the growth of red tide algae is difficult to effectively control in the ocean.

Summary of the invention

The purpose of this invention is to provide that a kind of ecological security is good, the methods and applications of the inhibiting red tide algae by enteromorpha of economical and efficient, to remedy the deficiencies in the prior art.

The present invention is by lot of experiments, and filtering out from multiple kelp has remarkable inhibiting edge pipe Enteromorpha to the red tide algae.Technical scheme of the present invention is to suppress raw material with the crushed material of edge pipe Enteromorpha (particle or powder) as the red tide algae to suppress the growth of red tide algae.

The method of inhibition red tide algae growth of the present invention is: edge pipe Enteromorpha is pulverized made particle or powder earlier; reinstall in the good Nylon Bag of water-permeable; and the ratio that restrains with every liter of seawater 0.5-2 drops in the pending seawater; after treating a couple of days, the Nylon Bag that edge pipe Enteromorpha particle or powder are housed is taken out to avoid secondary pollution from water body.

The crushed material of edge pipe Enteromorpha suppresses the application that material suppresses the growth of red tide algae as the red tide algae, and described edge pipe Enteromorpha is an edge pipe Enteromorpha plant.

The present invention has advantages such as effect of algae restraint is good, and material is cheap and easy to get, easy to operate, be easy to control, ecological security is good, thereby is widely used in the water bodys such as littoral zone, harbour, bathing beach, aquaculture base, realizes the effective control to red tide.

Embodiment

Edge pipe Enteromorpha of the present invention as the application method that red tide algae inhibition material suppresses the growth of red tide algae is: at first edge pipe Enteromorpha is made particle or powder with pulverizer, behind the good Nylon Bag of the water-permeable of packing into then, ratio with every liter of seawater 0.5-2 gram drops into pending seawater, to suppress the growth of red tide algae in the pending seawater water body; After the growth of red tide algae is suppressed, the Nylon Bag that edge pipe Enteromorpha powder is housed is taken out from water body.

During use, drop into 0.5-2 gram edge pipe Enteromorpha in per 1 liter of staying water, 2-10 days usually, the red tide algae promptly was suppressed in the water body, and edge pipe Enteromorpha is taken out, and the edge pipe Enteromorpha after avoiding rotting produces secondary pollution.

Below with the be represented as example of the middle Skeletonemacostatum in the common and main red tide algae as the red tide algae.

Embodiment

1.5 gram edge pipe Enteromorpha particles are packed in the good Nylon Bag of water-permeable, put into 3 liters of red tide algae culturing liquids, natural lighting, 25 ℃ of conditions are after following 3 days, and middle Skeletonemacostatum density is 5% of control group, and promptly inhibiting rate is 95%.

With 3 gram edge pipe Enteromorpha powder pack into water-permeable good put into above-mentioned water body, the same terms was cultivated 3 days, this algae density has reduced by 99%; Reduced by 99.7% after 6 days.

With 6 gram edge pipe Enteromorpha powder pack into water-permeable good put into above-mentioned water body after, the same terms was cultivated 3 days, this algae density has reduced by 99.9%.After the red tide algae Be Controlled, edge pipe Enteromorpha is taken out from water body, avoid producing secondary pollution.

Usually it is many to feed intake, and particle is thin, and the time of putting into staying water is short, can take out from water body in general 10 days, if disposable input edge pipe Enteromorpha powder is too much in the water body, will dissolve too much organism in the water body, and then water transparency descends.

Claims

1, a kind of method of inhibiting red tide algae by enteromorpha is: edge pipe Enteromorpha is pulverized made particle or powder earlier; reinstall in the good Nylon Bag of water-permeable; and the ratio that restrains with every liter of seawater 0.5-2 drops in the pending seawater; after treating a couple of days, the Nylon Bag that edge pipe Enteromorpha particle or powder are housed is taken out to avoid secondary pollution from water body.

2, the application of inhibiting red tide algae by enteromorpha is characterized in that the application of growing as inhibition red tide algae with the crushed material of edge pipe Enteromorpha.