The Possibility of Organo-Mineral Fertilizer Production from Sewage Sludge
The Possibility of Organo-Mineral Fertilizer Production from Sewage Sludge
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DOI：
10.1007/s12649-016-9805-9
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发表时间：
2017-07-01
影响因子：
3.2
通讯作者：
Wzorek, Zbigniew
中科院分区：
文献类型：
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作者：
Kominko, Halyna;Gorazda, Katarzyna;Wzorek, Zbigniew
由于污水污泥的数量不断增加及其处理问题，当前的文献对其给予了很多关注。在能源昂贵和天然原料枯竭的时代，有必要找到再利用和回收废物的方法。污水污泥具有很高的施肥潜力。它被称为丰富的营养来源。此外，它还含有大量的有机质，可以促进常量和微量营养素的生物利用度，改善土壤结构。然而，污水污泥直接施用于土壤受到重金属含量的限制。污水污泥通常含有病原微生物和有毒化合物。该研究的目的是确定利用废物（特别是污水污泥）生产肥料的最新技术和可用性。由于不同污水处理厂的污泥化学成分和物理性质各不相同，因此就地解决污泥处置问题非常重要。人们发现，从污水污泥中提取并通过添加矿物肥料进行改性的有机矿物肥料（OMF）似乎适合施用于土壤。添加酸或碱剂可实现成分的灭菌和结合。新型 OMF 的作物产量反应与传统肥料相当。它们的养分释放缓慢，这是相对于矿物肥料的主要优势。
A lot of attention has been paid in current literature to sewage sludge due to its increasing amount and problem with its disposal. In the age of expensive energy sources and depletion of natural feedstocks it is necessary to find ways of reusing and recycling waste. Sewage sludge has a high valuable fertilizing potential. It is known as a rich source of nutrients. In addition, it includes a large amount of organic matter, which could facilitate the bioavailability of macro- and micronutrients and improves the soil structure. However, a direct application of sewage sludge to the soil is restricted by heavy metals content. Sewage sludge commonly includes pathogenic microorganisms and toxic compounds. The aim of the study was to determine the state of the art and availability of technology for fertilizers production based on waste, especially on sewage sludge. As sewage sludge from different wastewater treatment plants varies in its chemical composition and physical properties, it is important to find a local solution to the problem of sewage sludge disposal. It has been found that organo-mineral fertilizers (OMFs) derived from sewage sludge and modified by the addition of mineral fertilizers seem to be suitable for application to the soil. Adding acids or alkali agents provide sterilization and binding of the components. Novel OMFs gave a comparable crop yield response as conventional fertilizers. They show a slow release of nutrients, which is the main advantage in relation to mineral fertilizers.