River sediment repairing agent and preparation and application method thereof

The invention discloses a river sediment repairing agent, which comprises the following components in parts by mass: 30-50 parts of calcium nitrate, 20-40 parts of calcium carbonate loaded with iron oxide, 5-20 parts of bentonite, 1-5 parts of polyvinyl alcohol, 1-5 parts of a surfactant and 1-5 parts of an adhesive. The invention also discloses a preparation method and application method of the river sediment repairing agent. The raw materials used for preparing the repairing agent are more environment-friendly, and the preparation method is simple and easy to implement; the prepared repairing agent has a slow release effect and can overcome the problems of fast dissolution, large dosage, low treatment efficiency and the like of the traditional repairing agent. 本公开揭示了一种河道底泥修复剂，所述河道底泥修复剂的组分及质量为：硝酸钙30～50份、负载有氧化铁的碳酸钙20～40份、膨润土5～20份、聚乙烯醇1～5份、表面活性剂1～5份、胶黏剂1～5份。本公开还揭示了一种河道底泥修复剂的制备方法和应用方法。本公开用于制备修复剂采用的原料对环境较为友好，且制备方法简单易行；所制备的修复剂具有缓释作用，能克服传统修复剂溶解快、投加量大、处理效率低等问题。