Schipper W J, Klapwijk A, Potjer B, Rulkens W H, Temmink B G, Kiestra F D, Lijmbach A C
Thermphos International BV, Vlissingen, The Netherlands.
Environ Technol. 2001 Nov;22(11):1337-45. doi: 10.1080/09593330.2001.9619173.
The feasibility of phosphate recycling in the white phosphorus production process is discussed. Several types of materials may be recycled, provided they are dry inorganic materials, low in iron, copper and zinc Sewage sludge ash may be used if no iron is used for phosphate precipitation in the treatment plant; using Ca or Al, or bio-P-removal, increases the recycling potential of the ash, but Cu and Zn are still present in problematic concentrations. Side stream P recovery as Ca- or Al-phosphates is a more attractive option and is discussed in detail. Manure ash also has too high levels of Cu and Zn. Recycling phosphates from industrial sources is possible in many cases, depending on the source.
讨论了白磷生产过程中磷回收利用的可行性。如果是干燥的无机材料，且铁、铜和锌含量较低，则有几种材料可以回收利用。如果污水处理厂在磷沉淀过程中不使用铁，污水污泥灰就可以使用；使用钙或铝，或生物除磷，会增加灰的回收潜力，但铜和锌的含量仍处于有问题的浓度。将侧流磷回收为钙或铝的磷酸盐是一个更有吸引力的选择，并将进行详细讨论。粪灰中的铜和锌含量也过高。在许多情况下，根据来源不同，从工业源回收磷酸盐是可行的。
