Watermelon peel containing heavy metal adsorbent and preparation method thereof
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A watermelon rind and heavy metal technology, applied in the field of environmental governance, can solve problems such as high operating costs, secondary pollution, and high energy consumption, and achieve the effects of low price, strong adsorption capacity, and large adsorption capacity
Inactive Publication Date: 2015-12-16
安徽省中日农业环保科技有限公司
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Problems solved by technology
[0003] Traditional heavy metal wastewater treatment methods mainly include chemical precipitation method, ion exchange method, membrane separation method, etc. These meth
Method used
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Embodiment 1
[0019] Embodiment 1: the preparation of watermelon peel heavy metal adsorbent
[0020] A kind of watermelon rind heavy metal adsorbent is prepared from the component raw materials of following weight (kg):
[0024] The preparation method of auxiliary agent is:
[0025] Clean and crush fresh tea leaves, fresh pine needles and fresh mulberry leaves, mix them with sodium citrate, and grind them evenly, first add citric acid, oxalic acid and water and stir for 6 hours at 90°C and 400r...
Embodiment 2
[0029] Embodiment 2: to the adsorption effect of heavy metal lead and copper
[0030] Take by weighing sorbent material 0.5g among the embodiment 1, join 1L heavy metal lead ion concentration in the water of 0.1g / L, in room temperature adsorption 1h, detect the concentration of remaining lead ion in the solution, record adsorption capacity and be 40.3mg / L g.
[0031] Take by weighing sorbent material 0.5g among the embodiment 1, join 1L heavy metal copper ion concentration in the water of 0.1g / L, in room temperature adsorption 1h, detect the concentration of remaining copper ion in the solution, record adsorption capacity and be 82.1mg / L g.
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Abstract
The invention discloses a watermelon peel containing heavy metal adsorbent and a preparation method thereof. The watermelon peel containing heavy metal adsorbent is characterized by being prepared from raw materials in parts by weight as follows: 60-80 parts of watermelon peel, 10-15 parts of rice husk, 5-10 parts of sepiolite powder, 5-10 parts of attapulgite, 3-5 parts of calcium chloride, 0.5-1 part of tannin acid, 3-5 parts of polyethylene glycol, 3-5 parts of sodium carboxymethylcellulose, 0.1-0.2 parts of nonylphenol polyoxyethylene ether, 4-6 parts of an aid and 40-60 parts of water. The heavy metal adsorbent is prepared with the watermelon peel as a main raw material, the heavy metal combination and adsorption capability is high, the adsorption capacity is high, the adsorbent is safe, environment-friendly, non-toxic and harmless, and secondary pollution to the environment is not caused in the wastewater treatment process; besides, the source of raw materials is wide, the price is low, the production cost is effectively reduced, the purposes of energy conservation and waste utilization are achieved, and higher economic benefits, social benefits and environmental benefits are obtained.
Description
technical field [0001] The invention relates to the field of environmental management, in particular to a watermelon rind heavy metal adsorbent and a preparation method thereof. Background technique [0002] With the development of the global economy and society, environmental pollution is becoming more and more serious. Industrial wastewater, as the main source of environmental pollution, has been a major problem that has plagued countries all over the world for a long time. Heavy metal ions in industrial wastewater have strong carcinogenic, teratogenic, and mutagenic effects, which pose a serious threat to human health and the ecological environment. Therefore, it is very important to strictly control the pollution of heavy metal wastewater. [0003] Traditional heavy metal wastewater treatment methods mainly include chemical precipitation, ion exchange, membrane separation, etc. These methods usually have problems such as large investment, high energy consumption, high op...
Claims
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Application Information
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