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| DOI：10.13522/j.cnki.ggps.2017.0504 |
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| Analysis of Adsorption Rules and Suitability of “Shuimeng” Inorganic Adsorbents for Yellow River Sediments |
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QU Shen, ZHANG Weifeng, YANG Shaodong, ZHANG Dongliang, WANG Liping
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China University of Geosciences(Beijing), Beijing 100083, China; Inner Mongolia Agricultural University,Huhhot 010018, China; .“Youjingtian”International Water Environment Research Center LTD, Beijing 100080, China
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| Abstract: |
| 【Objective】Find a new processing technology of the sediment of the Yellow River, and develop the technology of drop irrigation and decrease its cost. 【Method】 Based on the absorption property of four high-performance “Shuimeng” inorganic adsorbents, we used beaker static test of the Yellow River with different sand content, and ensured the absorption efficiency of different adsorbents and appropriate dosage to sediment and nutrient substance, selected the suitable type of adsorbent and the appropriate dosage of adsorbent under different sediment concentration and researched the influence of temperature on absorption property. 【Result】The results showed that, in the case of low sediment concentration (2~3 kg/m3), the absorption efficiency of CS-001 was the best, its appropriate dosage was 0.04 kg/m3; In case of high sediment concentration (10~15 kg/m3) Yellow River water, the absorption efficiency of CS-005 was the best, the appropriate dosage was 0.08 kg/m3. Temperature had an impact on settling velocity of sediment, and the absorption efficiency of CS-001 was better in 20 ℃, settling velocity of sediment was faster. CS-001 could reduce COD, TN and TP of the Yellow River, it was significant to?prevent blocking of microorganism in drop irrigation. 【Conclusion】It is appropriate to use CS-001 adsorbent in the treatment of drip irrigation using water from the Yellow River. |
| Key words: water of Yellow River; “Shuimeng” inorganic adsorbents; turbidity; sediment concentration |
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