Treatment method of kitchen waste concentrated solution
The invention discloses a treatment method of a kitchen waste concentrated solution. The treatment method comprises the following steps: adding alkali into the kitchen waste concentrated solution, and adjusting the pH value of the kitchen waste concentrated solution to 8-9 to obtain a primary concen...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a treatment method of a kitchen waste concentrated solution. The treatment method comprises the following steps: adding alkali into the kitchen waste concentrated solution, and adjusting the pH value of the kitchen waste concentrated solution to 8-9 to obtain a primary concentrated solution; separating the primary concentrated solution through a deamination membrane to remove ammonia nitrogen, so as to obtain a secondary concentrated solution; adding a chelating agent and a curing agent into the secondary concentrated solution, and uniformly stirring to obtain a mixture; the mixture is subjected to filter pressing treatment, an obtained filter cake can be directly used as engineering soil, and filtrate can be discharged after reaching the standard after being further treated. According to the method, ammonia nitrogen is separated and removed through the deamination membrane, recycling is achieved, then organic matter and metal ions in the concentrated solution are effectively combined |
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