Preparation method of iron series additive and method for increasing anaerobically produced methane
An anaerobic methane production and additive technology, applied in waste fuel, fermentation and other directions, can solve the problems affecting the resource utilization of biogas residue and biogas slurry, high treatment and disposal costs, and increased iron dosage, and achieve resource utilization. , the effect of reducing the amount of iron added and operating costs, and promoting the production of methane
Inactive Publication Date: 2018-09-04
NANJING FORESTRY UNIV
2 Cites 3 Cited by
AI-Extracted Technical Summary
Problems solved by technology
View more
Method used
View more
Abstract
The invention relates to a preparation method of an iron series additive and a method for increasing anaerobically produced methane, and belongs to the technical field of organic waste treatment. Themethod comprises the following specific steps: (1) using a low frequency ultrasonic generator to treat excess sludge of a municipal sewage treatment plant; (2) using a centrifugal machine to carry outsolid-liquid separation on the treated sludge, and extracting an extracellular polymeric substance (EPS); (3) slowly dissolving ferrous chloride (FeCl2) into the EPS, and stirring to obtain the ironseries additive Fe-EPS; (4) adding the Fe-PES into an organic waste anaerobic digestion reactor with relatively low iron background value, and carrying out a long-term methanogenesis reaction in an intermediate temperature condition; and (5) collecting and analyzing the yield of biogas and the content of methane, and evaluating the operation stability of the reactor. Iron precipitation can be avoided effectively, the efficiency of methanogenesis is improved, and simultaneously, the resource utilization of excess sludge and organic wastes is realized.
Application Domain
Waste based fuelFermentation
Technology Topic
Municipal sewageChemistry +13
Image
Examples
- Experimental program(3)
- Effect test(1)
Example Embodiment
Example Embodiment
Example Embodiment
PUM


Description & Claims & Application Information
We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.
Similar technology patents
Method for promoting ferment acid production of excess sludge through soapnut saponin production leftovers
Owner:JINGGANGSHAN COLLEGE
Renewable porous carbon adsorbent for toluene adsorption and preparation method thereof
Owner:CHONGQING BEYOND OCEAN CARBON MFR +1
Method for repairing arsenic-containing wastewater by using sludge
Owner:QINGDAO HAICHENG INTPROP SERVICES CO LTD
Method for recycling colored polyester fabric
Owner:JIANGNAN UNIV