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Enteromorpha flocculant and preparation process thereof

The technology of flocculant and prolifera is applied in the field of flocculant and its preparation, which can solve the problems of consuming financial resources and the like, and achieve the effects of diversified structure, simple production process and strong applicability.

Inactive Publication Date: 2012-04-18
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even ignoring the income from controlling the pollution of Enteromorpha, the technology of turning Enteromorpha into bio-oil is also costly when large-scale production is formed and the cost is reduced

Method used

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  • Enteromorpha flocculant and preparation process thereof
  • Enteromorpha flocculant and preparation process thereof
  • Enteromorpha flocculant and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The Enteromorpha used in this example was taken from Qingdao No. 1 Bathing Beach, the Enteromorpha was washed, dried in an oven at 70°C, then pulverized into powder in a magnetic pulverizer, and passed through a 100-mesh sieve to obtain a dry sample of Enteromorpha. The dry sample of Enteromorpha and deionized water were mixed at a mass ratio of 1:75, and stirred and leached in a constant temperature water bath at 90°C for 4 hours. The leached solution was centrifuged in a high-speed centrifuge at a speed of 5000r / min for 20 minutes. After taking the supernatant and adding the same volume of deionized water to dilute, the yellow-green transparent liquid is obtained, which is Enteromorpha flocculant.

[0021] The Enteromorpha flocculant of Example 1 was used to treat simulated water samples and actual water samples in the water treatment process, as detailed below.

[0022] Experimental water sample:

[0023] There are two kinds of water samples used in the experiment: one is ...

experiment example 1

[0025] The Enteromorpha flocculant prepared in Example 1 was used for the coagulation treatment of humic acid-kaolin simulated water samples. The results are listed in Table 1. The raw water quality is as follows: pH value is 8.37-8.4, turbidity is 15.1-15.4 NTU , UV 254 0.289-0.295cm -1 , DOC is 4.948-5.116mg / L.

[0026] Table 1 The effect of Enteromorpha flocculant on humic acid-kaolin simulated water samples

[0027]

[0028] From the above treatment results, it can be seen that the humic acid-kaolin simulated water sample treated with Enteromorpha flocculant has a significant effect on turbidity and UV 254 The removal effect of Enteromorpha is better, and the removal effect of DOC is average. Because Enteromorpha is an organic matter, when the dosage of Enteromorpha is more than 0.1mL, the removal efficiency of DOC gradually decreases and reaches the maximum value at 0.1mL.

experiment example 2

[0030] The Enteromorpha flocculant prepared in Example 1 was used for the coagulation treatment of the actual water samples of the Yellow River Diversion Reservoir. The raw water quality is as follows: pH value is 8.41-8.45, turbidity is 4.35-4.60 NTU, UV 254 0.036-0.040cm -1 , DOC is 3.688-3.787mg / L. The treatment results are listed in Table 2.

[0031] Table 2 The effect of Enteromorpha flocculant on actual water samples from the Yellow River Diversion Reservoir

[0032]

[0033] From the above treatment results, it can be seen that the treatment of the actual water samples of Enteromorpha flocculant for the removal of turbidity and DOC is better. When the dosage of Enteromorpha is greater than 0.1mL, the removal efficiency of DOC gradually decreases, at 0.1mL The best removal effect can reach 20%, and Enteromorpha flocculant is better for UV 254 The removal effect is not very satisfactory.

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Abstract

The invention relates to an enteromorpha flocculant and a preparation process thereof. The preparation process comprises the following steps that: a raw material enteromorpha is dried and crushed; the enteromorpha and deionized water are mixed according to a mass ratio of 1:70-75, and are stirred and extracted in an 85-90 DEG C constant-temperature water bath for 3-4 hours; and an extract is centrifugally separated, and a supernatant is diluted by adding an equal volume of deionized water to obtain the enteromorpha flocculant. The enteromorpha flocculant is applied to the coagulation treatment of water, so that the turbidity of water can be reduced, and the organic matter in the water can be removed. The enteromorpha flocculant has a simple and quick production process, a wide applicationrange and safety and nontoxicity, and a new way of thinking is provided for the reutilization technology of disaster green algae.

Description

(1) Technical field [0001] The invention relates to an Enteromorpha flocculant and a preparation process thereof, and belongs to the technical field of disaster green algae treatment and reuse. (2) Background technology [0002] With the rapid development of industry and agriculture, the population has increased dramatically, and the water resources on which mankind depends for survival have become increasingly scarce. The water resource crisis has become an important factor restricting my country's economic development. At present, my country's water resources have been polluted to varying degrees, and there is an increasing trend. In order to save water resources, improve water utilization, and reduce environmental pollution caused by wastewater, we must strengthen the treatment of industrial wastewater and domestic wastewater. In the water treatment process, coagulation sedimentation is the most widely used, most widely used, and low-cost key technology link. It determines t...

Claims

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Application Information

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IPC IPC(8): C02F1/56
Inventor 高宝玉赵爽王燕赵艳侠
Owner SHANDONG UNIV
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