Compound fertilizer producing process with organic waste water from gourmet powder production

• Main Authors: ZHIYONG SHEN, HUAIQING LI, GUOZHONG SHI
• Format: Patent
• Language: Chinese; English
• Published: 13.10.2004
• Edition: 7
• Subjects: CHEMISTRY; FERTILISERS; FERTILISERS CHARACTERISED BY THEIR FORM; MANUFACTURE THEREOF; METALLURGY; MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENTSUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVINGA SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES,SOIL-CONDITIONERS, WETTING AGENTS; ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE

本发明是一种利用味精有机废水生产复肥的方法，是在味精有机废水中加液氨调pH值至4、5，再浓缩3-4倍，之后在浓缩液中按要求加所需肥料元素，由喷浆造粒机即可制成系列复肥，其方法简单，费用低，既可有效处理味精废水，防止环境污染，又可解决农作物对肥料的需要，变废为宝，利国利民，其推广应用必为味精生产和农业丰产丰收创造出新的光明前景。 The method for producing composite fertilizers by utilizing organic waste water produced in the course of production of monosodium glutamate includes the following steps: adding liquid ammonia into the organic waste water to regulate pH value to 4-5, concentrating by 3-4 times, adding required fertilizer elements in the concentrated liquor according to the requirements, using spray-granulating machine to produce series composite fertilizers. Said invented method is simple, and its cost it low.