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    • 82. 发明授权
    • Method and device for producing nitrogen fertilizer, removing phosphate from organic waste products, and limiting the potassium concentration
    • 生产氮肥的方法和装置,从有机废物中去除磷酸盐,限制钾的浓度
    • US08241389B2
    • 2012-08-14
    • US11887341
    • 2006-03-21
    • Herbert SpindlerUte BauermeisterThomas Meier
    • Herbert SpindlerUte BauermeisterThomas Meier
    • C05C11/00
    • C05B17/00C05C3/00C05F3/00C05F7/00Y02A40/205Y02A40/213Y02E50/343Y02P20/145Y02W30/47C05F3/06
    • The invention relates to a method and a device for producing nitrogen fertilizer, removing phosphate from organic waste products in liquid phase, sanitizing said waste or reducing emissions, and limiting the potassium concentration. According to the invention, the waste product is heated to temperatures ranging between 40 DEG C. at a subatmospheric pressure, the escaping gas that contains carbon dioxide and ammonia is contacted with a mineral-aqueous suspension, the excess gas is conducted within the circuit while the subatmospheric pressure is autogenously stabilized, and the formed nitrogen fertilizer is discharged. In order to additionally produce phosphate fertilizer and limit the potassium concentration, the obtained fertilizer product is divided into the liquid and solid portion, and all or some of the solid portion is redirected into the stripping receptacle while the liquid waste product that is stripped of nitrogen and compounds and phosphorus compounds is cooled and mixed with at least one sulfate-containing compound to limit the small amount of a basic mineral powder is added thereto. The last solid portion obtained from said treatment can be used directly as phosphate fertilizer, potassium fertilizer, or phosphate-containing and potassium-containing mixed fertilizer.
    • 本发明涉及一种生产氮肥的方法和装置,从液相中的有机废物中除去磷酸盐,消毒废物或减少排放物,并限制钾的浓度。 根据本发明,将废物在低于大气压的压力下加热到40℃的温度,含有二氧化碳和氨的逸出气体与矿物 - 水悬浮液接触,过剩的气体在电路内传导,而 低于大气压自动稳定,形成的氮肥排出。 为了额外生产磷肥并限制钾浓度,将所得的肥料分为液体和固体部分,将全部或部分固体部分重新导入剥离容器,同时将脱氮液 并将化合物和磷化合物冷却并与至少一种含硫酸盐化合物混合,以限制少量添加碱性矿物粉末。 从所述处理得到的最后一个固体部分可以直接用作磷肥,钾肥或含磷酸钾和含钾混合肥料。
    • 88. 发明申请
    • Method and Device for Producing Nitrogen Fertilizer, Removing Phosphate From Organic Waste Products, and Limiting the Potassium Concentration
    • 生产氮肥的方法和装置,从有机废物中除去磷酸盐,限制钾浓度
    • US20090078013A1
    • 2009-03-26
    • US11887341
    • 2006-03-21
    • Herbert SpindlerUte BauermeisterThomas Meier
    • Herbert SpindlerUte BauermeisterThomas Meier
    • C05F11/00B01J19/00
    • C05B17/00C05C3/00C05F3/00C05F7/00Y02A40/205Y02A40/213Y02E50/343Y02P20/145Y02W30/47C05F3/06
    • The invention relates to a method and a device for producing nitrogen fertilizer, removing phosphate from organic waste products in liquid phase, sanitizing said waste or reducing emissions, and limiting the potassium concentration. According to the invention, the waste product is heated to temperatures ranging between 40° C. and 90° C. at a subatmospheric pressure, the escaping gas that contains carbon dioxide and ammonia is contacted with a mineral-aqueous suspension, the excess gas is conducted within the circuit while the subatmospheric pressure is autogenously stabilized, and the formed nitrogen fertilizer is discharged. In order to additionally produce phosphate fertilizer and limit the potassium concentration, the obtained fertilizer product is divided into the liquid and solid portion, and all or some of the solid portion is redirected into the stripping receptacle while the liquid waste product that is stripped of nitrogen compounds and phosphorus compounds is cooled and mixed with at least one sulfate-containing compound to limit the potassium concentration. Optionally, the viscosity of the waste product is specifically reduced and a very small amount of a basic mineral powder is added thereto. The last solid portion obtained from said treatment can be used directly as phosphate fertilizer, potassium fertilizer, or phosphate-containing and potassium-containing mixed fertilizer.
    • 本发明涉及一种生产氮肥的方法和装置,从液相中的有机废物中除去磷酸盐,消毒废物或减少排放物,并限制钾的浓度。 根据本发明,将废物在低于大气压下加热至40℃至90℃的温度,将含有二氧化碳和氨的逸出气体与矿物水悬浮液接触,过量气体为 在电路内进行,同时低于大气压自动稳定,并且形成的氮肥被排出。 为了额外生产磷肥并限制钾浓度,将所得的肥料分为液体和固体部分,将全部或部分固体部分重新导入剥离容器,同时将脱氮液 将化合物和磷化合物冷却并与至少一种含硫酸盐化合物混合以限制钾浓度。 任选地,废物的粘度被明确地减少,并且向其中加入极少量的碱性矿物粉末。 从所述处理得到的最后一个固体部分可以直接用作磷肥,钾肥或含磷酸钾和含钾混合肥料。