The effectiveness of phosphate (P) removal from aqueous solutions was investigated by novel low-cost biochars synthesized from vinasse and functionalized with calcined dolomite. The vinasse-derived biochar, synthesized via pyrolysis at different temperatures, showed easy preparation and a large surface area. The novel vinasse biochar nanocomposites were prepared by adding dolomite to the vinasse biochars with different weight percentages (10, 20 and 30%). The characteristics of the prepared materials were identified for further understanding of the inherent adsorption mechanism between P ions and vinasse biochars. Vinasse-dolomite nanocomposite was very effective in the adsorption of P species from aqueous media. The effect of the operational factors on Vinasse-dolomite nanocomposite was explored by applying response surface methodology (RSM). According to RSM results, the optimum condition was achieved to be contact time 90 (min), 250 (mg/L) of P concentration and pH 7. Thermodynamic isotherm and kinetic studies were applied on experimental data to understand the adsorption behavior. The Vinasse-dolomite nanocomposite revealed preferential P species adsorption in the presence of co-existing anions. The P species could be recovered by 1.0 M HCl where the efficiency was not affected up to the fifth cycle. The P-loaded Vinasse-dolomite nanocomposite was successfully tested on a plant; it significantly improved its growth and proved its potency as a P-based fertilizer substitute.

通过从酒糟中合成并经煅烧白云石官能化的新型低成本生物炭研究了从水溶液中去除磷酸盐（P）的有效性。通过在不同温度下热解合成的源自酒糟的生物炭，易于制备且表面积大。通过将白云石添加到具有不同重量百分比（10％，20％和30％）的酒糟生物炭中来制备新型的酒糟生物炭纳米复合材料。确定了制备材料的特性，以进一步了解P离子与酒糟生物炭之间的固有吸附机理。Vinasse-白云石纳米复合材料在从水性介质中吸附P物质方面非常有效。应用响应面方法（RSM）探索了操作因素对Vinasse-白云石纳米复合材料的影响。根据RSM结果，最佳条件为接触时间90（分钟），P浓度为250（mg / L）和pH7。对实验数据进行了热力学等温线和动力学研究，以了解吸附行为。在共存阴离子的存在下，Vinasse-白云石纳米复合材料显示出优先的P物种吸附。可通过1.0 M HCl回收P物质，直到第五个循环，效率均未受影响。磷负载的Vinasse-白云母纳米复合材料已在植物上成功测试。它显着改善了其生长并证明了其作为P基肥料替代品的潜力。将热力学等温线和动力学研究应用于实验数据以了解吸附行为。在共存阴离子的存在下，Vinasse-白云石纳米复合材料显示出优先的P物种吸附。可以通过1.0 M HCl回收P物质，直到第五个循环，效率均未受影响。磷负载的Vinasse-白云母纳米复合材料已在植物上成功测试。它显着改善了其生长并证明了其作为P基肥料替代品的潜力。将热力学等温线和动力学研究应用于实验数据以了解吸附行为。在共存阴离子的存在下，Vinasse-白云石纳米复合材料显示出优先的P物种吸附。可以通过1.0 M HCl回收P物质，直到第五个循环，效率均未受影响。磷负载的Vinasse-白云母纳米复合材料已在植物上成功测试。它显着改善了其生长并证明了其作为P基肥料替代品的潜力。