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Suspension filler for water treatment

A suspension filler, water treatment technology, applied in the field of water treatment, can solve the problems of discomfort, high density, poor mechanical properties, etc.

Active Publication Date: 2014-06-18
CHINESE RES ACAD OF ENVIRONMENTAL SCI +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] From the above analysis, it can be seen that the mechanical properties of inorganic fillers are better, but their density is too large, so they are not suitable for suspension fillers, while organic fillers are suitable for suspension fillers, but their mechanical properties are poor.

Method used

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  • Suspension filler for water treatment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Set the specific surface area to 1000m 2 / g, polyacrylonitrile-based carbon fiber bundles with a diameter of 7 μm are cut into small carbon fiber bundles with a length of about 5cm, 6cm, and 7cm (a bundle of about 1000 fiber filaments), and the three bundles of carbon fiber bundles are fixed by a binder On a first ring frame 11 with a diameter of 5 cm. Then, the carbon fiber bundle with a length of 50 cm is wound on the first ring frame 11 and the second ring frame 12, and is combined and fixed into a net packing with a string. Put 30 water treatment suspension fillers 30 (about 150 g) prepared in the above-mentioned manner according to the embodiment of the present invention into a 5 L glass reactor 31 , and the filler filling rate is about 60%.

[0045] Take river water as the treatment object, place the water treatment suspension packing 30 in the glass reactor 31, aerate the water treatment suspension packing 30 through the air inlet on the glass reactor 31, and ke...

Embodiment 2

[0050] The water treatment suspension filler 30 prepared above and the biological fluidized bed have the same reaction conditions, and the treatment object is the bleaching wastewater of the pulp mill, and its wastewater is chlorine-containing toxic wastewater. ~25°C.

Embodiment 3

[0055] With the biological fluidized bed used in Example 1, the equipment conditions are consistent, and the treatment object is the flotation wastewater of the mineral processing plant, and its wastewater contains Pb 2+ 0.02~0.42mg / L, Zn 2+ 0.02~1.27mg / L, As + 0.05~0.16mg / L, Cu 2+ 0.02~0.30mg / L, total chromium 0.05~0.44mg / L, COD Cr 120~285mg / L, add a small amount of activated sludge domesticated by the wastewater, and the reaction temperature is 18~25°C.

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Abstract

The invention discloses a suspension filler for water treatment. The suspension filler comprises a supporting frame and a carbon filer bundle having two ends fixed on the supporting frame, the carbon fiber bundle comprises an inner-layer carbon fiber bundle and an outer-layer carbon fiber bundle, the supporting frame comprises a first annular frame, a second annular frame and a third annular, and the first, second and third annular frames are arranged in a mutual intersection manner. The inner-layer carbon fiber bundle substantially flutters in the supporting frame, the outer-layer carbon fiber bundle slightly flutters, and microbes and dirty substances in wastewater can be adhered and adsorbed to the suspension filler; the suspension filler for water treatment adopting the first, second and third annular frames to form the supporting frame can fully utilize the power of water flow and airflow to realize buoyancy motion, so the suspension filler for water treatment combines excellent material performances comprising high adsorption performance, high biological endophilicity and the like of the carbon fiber material with the optimized designs of the structure of the supporting frame, the inner-layer carbon fiber bundle and the outer-layer carbon fiber bundle, thereby the comprehensive performances of the obtained suspension filler are very good.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a water treatment suspension filler with excellent comprehensive properties such as fast film formation, high pollutant removal efficiency, strong pollution load resistance, and good toxicity resistance. Background technique [0002] With the continuous development of social economy, more and more waste water and urban domestic sewage are produced in the process of industrial and agricultural production, and as my country's environmental protection requirements continue to become stricter, the treatment of the above waste water and the discharge and recycling of the above-mentioned waste water have become a way to reduce the environment. Pollution, an important means to reduce production costs. Among the many water treatment methods, the biofilm method has become the most effective method due to its high efficiency, less sludge volume, no sludge bulking, good adaptability ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/10
CPCY02W10/10
Inventor 姚理为余辉牛远余建平刘倩王振平文波杨芳
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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