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Suspended biological film filler of composite trace metal ions and preparation method of suspended biological film filler

A trace metal, biofilm technology, applied in sustainable biological treatment, chemical instruments and methods, biological water/sewage treatment, etc., can solve the problem of unsatisfactory microbial metabolism, affecting the purification efficiency of biofilm packing, and low efficiency of microbial purification of sewage and other problems, to achieve the effect of increasing efficiency, reducing emissions, and improving removal effect.

Active Publication Date: 2015-07-15
宜兴盛溢基业环保科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing technologies focus on improving the physical structure of biofilm fillers, which increases the effective contact area between industrial wastewater and biofilm fillers. However, because microorganisms live in an environment lacking nutrients, their metabolic capacity will decline or die. , thus affecting the purification efficiency of the biofilm filler
Although some nutrient elements required for microbial growth are also added in some prior art, because no targeted trace elements are selected according to the specific conditions of the industrial wastewater environment, in practice, the metabolic capacity of microorganisms is still not ideal. , the existing technology still cannot well solve the problem of low efficiency of microorganisms in purifying sewage due to the lack of nutrients

Method used

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  • Suspended biological film filler of composite trace metal ions and preparation method of suspended biological film filler
  • Suspended biological film filler of composite trace metal ions and preparation method of suspended biological film filler
  • Suspended biological film filler of composite trace metal ions and preparation method of suspended biological film filler

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Raw material consumption:

[0034] In the present embodiment, the preparation raw material consumption of the microbial film filler used is as follows (mass percentage):

[0035]

[0036] Preparation:

[0037] (1) Dry polypropylene (PP), polyethylene glycol (PEG), and maleic anhydride (MAH) at 90°C for 2 hours; metal compound sodium molybdate (Na 2 MoO 4 2H 2 O) and cobalt aluminate (Co(AlO 2 ) 2 ) were placed in a drying oven at 150°C for dehydration for 12 hours, taken out, and ground;

[0038] (2) Put the various raw materials that have been pretreated in the high-speed mixer according to the above mass ratio and mix them for 10 minutes to make them fully mixed;

[0039] (3) The measured density of the mixed raw material is 0.963g / cm 3 ;

[0040] (4) Take the above-mentioned mixed raw materials and place them in the hopper of an injection molding machine, and use a spherical biofilm filler mold for injection molding, and the injection molding temperature i...

Embodiment 2

[0045] Raw material consumption:

[0046] In the present embodiment, the preparation raw material consumption of the microbial film filler used is as follows (mass percentage):

[0047]

[0048] The preparation method is the same as that described in Example 1.

[0049] Effect test:

[0050] The target wastewater to be treated is knitted fabric printing and dyeing wastewater, in which the pH value of the wastewater is 10, the chroma is 290 times, the BOD value is 250mg / L, the COD value is 850mg / L, and the suspended matter is 250mg / L. Activated sludge is taken from a sewage treatment plant and cultivated and domesticated so that it can stably treat printing and dyeing wastewater. The activated sludge system and the ordinary biofilm filler and the new composite trace metal element suspended biofilm filler are added to the wastewater, the MLSS in the wastewater is 4000mg / L, the sludge load is 0.2kgCOD / kgMLSS·d, and the filler is filled The rate is 30%, using uninterrupted a...

Embodiment 3

[0052] Raw material consumption:

[0053] In the present embodiment, the preparation raw material consumption of the microbial film filler used is as follows (mass percentage):

[0054]

[0055]

[0056] The preparation method is the same as that described in Example 1.

[0057] Effect test:

[0058] The target treated wastewater is pure cotton printing and dyeing wastewater, in which the pH value of the wastewater is 10, the chroma is 300 times, the BOD value is 350mg / L, the COD value is 1500mg / L, and the suspended matter is 300mg / L. The activated sludge is taken from a sewage treatment plant, and it is cultivated and domesticated so that it can treat printing and dyeing wastewater very stably. The activated sludge system is added to the In the waste water, the MLSS in the waste water is 6000mg / L, the sludge load is 0.2kgCOD / kgMLSS·d, the filling rate of the filler is 40%, and the uninterrupted air compressor is used for aeration operation, accompanied by stirring, an...

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Abstract

The invention discloses a suspended biological film filler of composite trace metal ions for treating industrial wastewater and a preparation method of the suspended biological film filler. The preparation method adopts a melt injection molding technology to compound a high polymer filler matrix with different types of trace metal elements needed by the growth of a biological film so as to prepare a suspended biological film filler material for treating the industrial wastewater. According to the preparation method, a preparation process for compounding the filler matrix with the different types of trace metal elements is used, so that the defects that a common suspended biological film filler is less in film culturing quantity, long in film culturing time and low in water treatment efficiency can be effectively improved, and the composite filler containing certain trace metal elements can be used for effectively treating certain specific wastewater. The biological film filler disclosed by the invention is pioneering, the process cost is low, the preparation condition is simple in requirement, and the preparation time is short, so that the preparation method is particularly suitable for preparing the high-performance suspended biological film filler on a large scale.

Description

technical field [0001] The invention relates to a trace metal ion composite suspended biofilm filler for treating industrial waste water and a preparation method thereof. Background technique [0002] The problem of shortage of water resources is becoming more and more serious. my country is a country seriously short of water, and the per capita water resources are only 1 / 4 of the world average. With the development of the economy, the consumption of industrial water resources in my country is increasing, and the discharge of wastewater is also increasing sharply. Therefore, improving the recycling rate of industrial wastewater is of great significance to solve the problem of water shortage. [0003] At present, the treatment of industrial wastewater usually adopts the biological contact oxidation method, which has been widely used in the treatment of textile printing and dyeing, petrochemical, pharmaceutical and other wastewater. The essence of the biological contact oxida...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/10
CPCC02F3/107C02F3/108Y02W10/10
Inventor 邵国成周律贾奇博彭标
Owner 宜兴盛溢基业环保科技有限公司
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