申请人:——
公开号:US20030022959A1
公开(公告)日:2003-01-30
Aqueous or solid nitrogen containing compound compounds are produced by heating urea with wet solid sewer sludge thereby producing a urea-urea condensate-sewer sludge composition in a process to dry out the sewer sludge. The urea reacts with itself and with the compounds in the sewer sludge. The urea and/or urea condensate reacts with the sulfur containing compounds thereby reducing the odor from heating the sewer sludge. The urea-urea condensate-sewer sludge composition is useful as a bio-fertilizer, may be utilized to fight grass, forest, building fires, flame retard other flammable organic material by applying it on or incorporating it in these flammable organic materials and may be reacted with aldehydes to produce resins. Carbonization auxiliaries, such as phosphorus containing compounds, metal containing compounds that will accelerate carbonization, heat reflector, surfactant and fillers may be added to or reacted with the aqueous or solid urea-urea condensate-sewer sludge composition.
通过将尿素与湿固体污水污泥加热,产生尿素-尿素缩合物-污水污泥组合物,从而生产含氮水溶液或固体化合物,用于干燥污水污泥的过程。尿素与自身以及污水污泥中的化合物发生反应。尿素和/或尿素缩合物与含硫化合物反应,从而减少加热污水污泥产生的气味。尿素-尿素缩合物-污水污泥组合物可用作生物肥料,可用于对抗草地、森林、建筑物火灾,阻燃其他易燃有机材料,将其涂抹或加入这些易燃有机材料中,并可与醛类反应产生树脂。碳化助剂,如含磷化合物、含金属化合物、加速碳化的热反射材料、表面活性剂和填充剂可以添加到或与含氮水溶液或固体尿素-尿素缩合物-污水污泥组合物反应。