Manure-containing water (MCW) is frequently used for agricultural amendment, a practice that introduces natural and synthetic hormones to the environment. Advanced treatment processes are not practical for most animal operations, so inexpensively removing hormones from MCW by capture with vegetable oils was evaluated. Estrone (E1) and 17β-estradiol (E2) were used as model hormones due to their high biological activity and prevalence in MCW. Eight vegetable-based oils were able to remove >94% of E1 and >87% of E2 from nanopure water (NPW), and tested oils had log₁₀K_oil-water values of 1.96-2.66 for E1 and 1.51-2.47 for E2. System parameters were optimized at 3 min of shaking time and 1:10 corn oil:water (v/v). Removal from real MCW and NPW was assessed at several initial concentrations of E1 and E2. While E1 removal was comparable across all initial concentrations and both waters (>93%), E2 removal exhibited concentration-dependent interaction with MCW matrix. Treatment capacity was assessed by using the same oil for multiple batches of NPW or MCW. After 18 cycles, removal dropped to 50-64% of E1 and 35-37% for E2. Treating MCW with vegetable oils may be a promising approach to inexpensively remove microcontaminants before MCW is used for land application.

中文翻译：

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通过植物油捕集去除含粪肥水中的雌激素

含肥水（MCW）通常用于农业改良，这种做法将天然和合成激素引入环境。先进的处理工艺对于大多数动物手术都不实用，因此评估了通过用植物油捕获廉价地去除MCW中的激素的方法。由于雌激素（E1）和17β-雌二醇（E2）具有较高的生物活性和在MCW中的普遍性，因此被用作模型激素。八种植物基油能够从纳米纯水（NPW）中去除> 94％的E1和> 87％的E2，测试的油具有₁₀ K_的油水E1的值1.96-2.66，E2的值1.51-2.47。在3分钟的振荡时间和1:10的玉米油：水（v / v）下优化了系统参数。在几个初始浓度的E1和E2上评估了从实际MCW和NPW中的去除率。尽管在所有初始浓度和两种水（> 93％）中，E1的去除率都是可比的，但E2的去除表现出与MCW基质的浓度依赖性相互作用。通过对多批NPW或MCW使用相同的油来评估处理能力。18个循环后，去除率降至E1的50-64％，E2的去除率降至35-37％。用植物油处理MCW可能是一种有前途的方法，可以在将MCW用于土地应用之前廉价地去除微污染物。