Groundwater ferrum and manganese removing method in combination with activated carbon technology
A groundwater and activated carbon technology, applied in chemical instruments and methods, water pollutants, water/sewage multi-stage treatment, etc., can solve problems such as odor and chroma, achieve high removal rate, improve drinking safety, and be easy to control Effect
Inactive Publication Date: 2012-05-30
TIANJIN TANGGU XINYU ENVIRONMENTAL PROTECTION TECH
View PDF0 Cites 10 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002] Iron and manganese in groundwater mainly exist in the form of divalent ions. Trace amounts of iron and manganese are essential elements for the human body, but excessive amounts of iron and manganese in drinking water will produce odor and color
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0016] see figure 1 , figure 1 It is a working flow chart of a groundwater iron and manganese removal method combined with activated carbon technology in this example. It mainly includes three steps:
[0017] (1) Aeration oxidation
[0018] The groundwater containing iron and manganese enters the aeration water tank under the action of the water pump, and the blower aerates the groundwater in the water tank through the jet aeration device. Less than 5mg / L. The iron in the groundwater is mainly ferrous ions. After aeration, it is oxidized to ferric ions by oxygen and forms hydroxide flocs;
[0019] (2) Retention and re-oxidation of multi-media filter
[0020] The water outlet of the aeration water tank is connected to the water inlet of the water pump through a pipeline, and through the pressurization of the water pump, the groundwater enters the multimedia filter, and manganese sand is filled in the multimedia filter, wherein the content of manganese dioxide is 35%. The ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a groundwater ferrum and manganese removing method in combination with activated carbon technology, falling into the technical field of groundwater treatment. The method comprises (1) performing aeration oxidation process to groundwater containing ferrum and manganese to oxidize the ferrous ions in the groundwater into ferric ions by jet aeration; (2) performing multimedium filter interception and reoxidation process, wherein the multimedium filter is filled with manganese sand, the manganese sand contains 35% manganese dioxide which can oxidize the unoxidized ferrous ions in the aeration process into ferric ions, the hydroxide precipitate of the ferric ions can be adsorbed by the manganese sand, an active filter membrane is formed around the manganese sand, and bivalent manganese ions in the groundwater can be oxidized into manganese dioxide to be adsorbed and intercepted by the manganese sand; and (3) performing re-adsorption interception process by food-grade activated carbon to remove chemical organic matters as well as chroma and taste possibly contained in the ground water, so as to ensure safe drinking of the groundwater where ferrum and manganese have been removed.
Description
technical field [0001] The invention relates to a groundwater iron and manganese removal method combined with activated carbon technology, which belongs to the technical field of groundwater treatment. The invention adopts the technology of combining the multi-media filter and the food-grade activated carbon filter, which can remove common iron and manganese ions in groundwater, has the characteristics of good removal efficiency and high safety, and can produce standard domestic drinking water , which is of great significance for solving groundwater pollution. Background technique [0002] Iron and manganese in groundwater mainly exist in the form of divalent ions. Trace amounts of iron and manganese are essential elements for the human body, but excessive amounts of iron and manganese in drinking water will produce odor and color. When the iron content in water is less than 0.3mg / L, there is no peculiar smell; when the iron content is 0.5mg / L, the chroma can reach over 30 ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04C02F1/28C02F101/20
Inventor 王国锋扬宗政
Owner TIANJIN TANGGU XINYU ENVIRONMENTAL PROTECTION TECH