| 摘要: |
| 目的 探究水基岩屑荒漠土壤化可行性及环境风险。方法 系统分析了水基岩屑的基本性能、土壤肥力、重金属及有机物污染特性，并开展了水基岩屑与荒漠土、碳汇林土壤混合后的种植实验。结果 水基岩屑中速效钾、有效锌和有效镁含量高；pH、含盐量、阳离子交换量和可溶性氯含量是土壤化主要制约因子，且重金属和有机污染物含量均低于标准；种植后，pH、含盐量、可溶性氯含量和速效钾含量依次平均下降了6.95%、60.67%、62.42%和11.00%，阳离子交换量和有机质含量依次平均升高557.98%和41.95%，土壤理化性能均有明显改善，混合土壤中植物成长情况均优于岩屑、荒漠土，推荐水基岩屑与荒漠土混合质量比8∶2至7∶3。结论 水基岩屑土壤化利用具有可行性，安全性较高，仍需要进一步研究突破制约因子局限的土壤改良剂，以提高肥力，并管控植物中污染物的富集风险，最终实现水基岩屑土壤化更高效安全的利用。 |
| 关键词: 水基钻屑 种植土 荒漠 土壤 |
| DOI：10.3969/j.issn.1007-3426.2024.06.022 |
| 分类号: |
| 基金项目:新疆维吾尔自治区2022年“天池英才”引进计划项目“钻井岩屑荒漠土改良技术研究” |
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| Feasibility study on soilization of water-based drilling cuttings desert |
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WANG Maoren1, XIA Zhenzhen2, CHAGALA Youmaka2, CHANG Siwen2, ZHAO Anyang1
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1.College of Engineering, China University of Petroleum (Beijing) at Karamay, Karamay, Xinjiang, China;2.Western (Karamay) Experimental Testing Co., Ltd., Yangtze University, Karamay, Xinjiang, China
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| Abstract: |
| Objective The aim is to explore the feasibility and environmental risks of water-based drilling cuttings desert soilization. Methods The basic properties, soil fertility, and heavy metal and organic pollutant characteristics of water-based drilling cuttings were systematically analyzed. Further, planting experiments were carried out after mixing water-based drilling cuttings with desert soil and carbon sink forest soil. Results The contents of available potassium, available zinc and available magnesium in the water-based drilling cuttings are high, while pH, contents of salt cation exchange capacity and soluble chlorine are the main restriction factors of soilization, and the contents of heavy metals and organic pollutants are lower than the standard values. After planting, pH, the contents of salt, soluble chlorine, and quick-acting potassium have decreased by 6.95%, 60.67%, 62.42%, and 11.00% on average, respectively. Conversely, cation exchange capacity and organic matter contents have increased by 557.98% and 41.95% on average, respectively. The results showed that the physical and chemical properties of soil have been significantly improved, and the growth of plants in mixed soil is better than that in water-based drilling cuttings and desert soil. The mixing mass ratio of water-based drilling cuttings to desert soil was recommended to be 8∶2 or 7∶3. Conclusions Soilization utilization of water-based drilling cuttings is feasible and environmentally safe is high. Further research is needed on soil amendments that break through the restrictive factors, improve fertility, monitor the risk of biological enrichment, and realize more efficient and safe utilization of water-based drilling cuttings soilization. |
| Key words: water-based drilling cuttings planting soil desert soil |
