A kind of feldspar in powder production sewage treatment method[technical field]
The present invention relates to technical field of sewage, in particular to a kind of feldspar in powder production sewage treatment method.
[background technique]
In the production and processing of potassium ore, need to carry out ore washup and eddy flow processing etc., meeting in these processing stepsA large amount of sewage is generated, contains a large amount of potassium ore fine sand or fine particle etc. in sewage.If directly excluded, first can be dirtyEnvironment is contaminated, very big injury is caused to environment；Second increasingly lacks instantly in water resource, and waste water source can greatly increase enterpriseIndustry production cost；Fine sand in third production excludes therewith, will increase post-processing difficulty.
Contain a large amount of feldspars in powder in feldspar in powder production waste, the smallest feldspar in powder up to 100 mesh sizes or so, thisIt is to be generated in the eddy flow treatment process in generating process；If do not handle recycling will waste water resource and ore significantly it is formerMaterial.Treatment process is more slow in existing cyclic utilization system, especially existing concentration tower cannot to containing particle less than 100Purpose sewage is quickly handled, these all limit generation production waste in feldspar in powder and recycle.
Therefore, the invention proposes a kind of feldspar in powder production sewage treatment method, allow to sewage rapid precipitationConcentration, discharge clear water can repeatedly generate utilization without reprocessing.
[summary of the invention]
In view of above content, it is necessary to provide a kind of feldspar in powder production sewage treatment method, this method is in ultrasound conditionUnder to production waste carry out flocculation treatment, reach the technical requirements that can continue to ore dressing, feldspar in powder production waste solved with thisThe technical issues of continuing ore dressing can be recycled.
In order to achieve the above objectives, the technical scheme adopted by the invention is that:
A kind of feldspar in powder production sewage treatment method, specific processing step and sequence are as follows:
1) ultrasound-flocculation treatment: potassium feldspar production waste is input in sedimentation basin by pumping, by phonochemistry generatorProbe protrudes under sewage level at 5-10cm, and composite flocculation agent is added in sewage, stirs, while opening phonochemistry generatorIt is ultrasonically treated, makes composite flocculation agent and sewage hybrid reaction 15-20min, generate flocculation water, the flocculate in flocculation water is certainlySo sedimentation, sewage are layered as supernatant and solid precipitation；
The composite flocculation agent is mixed by the raw material of following parts by weight: 9-12 parts of cationic polyacrylamide, sulfuric acid3-5 parts of iron, 1-3 parts of polyaluminum sulfate ferric-aluminum chloride；
2) it is concentrated: supernatant being sent into progress concentration in concentration tower and obtains concentrate；
3) it squeezes: concentrate being sent into squeeze and filter in squeezer, clear water is obtained, is flowed into clear water in clear water reserviors, whenWhen potassium feldspar ore dressing, with pump from drawing water and being transported in potassium feldspar dressing plant in clear water reserviors, used for ore dressing water.
Further, in step 1), the composite flocculation agent is mixed by the raw material of following parts by weight: cation poly- third11 parts of acrylamide, 4 parts of ferric sulfate, 2 parts of polyaluminum sulfate ferric-aluminum chloride.
Further, in step 1), the supersonic frequency of the ultrasonic treatment is 25~40kHz.
Further, in step 1), the additive amount of the composite flocculation agent is that every 1L sewage adds 1-3g.
Further, in step 1), the flocculate static balance time in the flocculation water is 2-3 hours.
Further, in step 3), the filtering material of the squeeze and filter is micropore ceramics, the micropore ceramic filter materialThe pore size filter of material is 150-300 μm.
The invention has the following advantages:
The present invention makes the suspended substance sedimentation in sewage by adding composite flocculation agent in sewage under supersonic synergetic effectPurification, reaches the technical requirements for continuing on for ore dressing, treated water COD < 100mg/L, and suspended matter < 50mg/L realizes lifeProduce recycling for sewage.Have the characteristics that investment is small, running expense is low, energy-saving and emission-reduction and circular economy, is suitable for all kinds of potassium feldsparsPowder manufacturing enterprise effluent cycle is applied in utilizing.
[specific embodiment]
The present invention will be described in detail by way of examples below, and in the examples below, COD value is to pass throughWhat the method recorded in GB11914-1989 measured；SS value is measured by the method recorded in GB11901-1989's.
Embodiment 1
A kind of feldspar in powder production sewage treatment method, specific processing step and sequence are as follows:
1) ultrasound-flocculation treatment: potassium feldspar production waste is input in sedimentation basin by pumping, by phonochemistry generatorProbe protrude under sewage level 8cm at, composite flocculation agent is added in sewage, stirring, while open phonochemistry generator intoRow ultrasonic treatment, makes composite flocculation agent and sewage hybrid reaction 16min, generates flocculation water, and the flocculate in flocculation water is naturally heavyDrop 2.5 hours, sewage is layered as supernatant and solid precipitation；
The supersonic frequency of the ultrasonic treatment is 30kHz；
The composite flocculation agent is mixed by the raw material of following parts by weight: 11 parts of cationic polyacrylamide, ferric sulfate 4Part, 2 parts of polyaluminum sulfate ferric-aluminum chloride；The additive amount of the composite flocculation agent is that every 1L sewage adds 2g；
2) it is concentrated: supernatant being sent into progress concentration in concentration tower and obtains concentrate；
3) it squeezes: concentrate being sent into squeeze and filter in squeezer, clear water is obtained, is flowed into clear water in clear water reserviors, whenWhen potassium feldspar ore dressing, with pump from drawing water and being transported in potassium feldspar dressing plant in clear water reserviors, used for ore dressing water；Wherein, it pressesThe filtering material for squeezing filtering is micropore ceramics, and the pore size filter of micropore ceramic filter material is 200 μm.
Embodiment 2
A kind of feldspar in powder production sewage treatment method, specific processing step and sequence are as follows:
1) ultrasound-flocculation treatment: potassium feldspar production waste is input in sedimentation basin by pumping, by phonochemistry generatorProbe protrude under sewage level 5cm at, composite flocculation agent is added in sewage, stirring, while open phonochemistry generator intoRow ultrasonic treatment, makes composite flocculation agent and sewage hybrid reaction 15min, generates flocculation water, and the flocculate in flocculation water is naturally heavyDrop 2 hours, sewage is layered as supernatant and solid precipitation；
The supersonic frequency of the ultrasonic treatment is 25kHz；
The composite flocculation agent is mixed by the raw material of following parts by weight: 9 parts of cationic polyacrylamide, ferric sulfate 3Part, 1 part of polyaluminum sulfate ferric-aluminum chloride；The additive amount of the composite flocculation agent is that every 1L sewage adds 1g；
2) it is concentrated: supernatant being sent into progress concentration in concentration tower and obtains concentrate；
3) it squeezes: concentrate being sent into squeeze and filter in squeezer, clear water is obtained, is flowed into clear water in clear water reserviors, whenWhen potassium feldspar ore dressing, with pump from drawing water and being transported in potassium feldspar dressing plant in clear water reserviors, used for ore dressing water；Wherein, it pressesThe filtering material for squeezing filtering is micropore ceramics, and the pore size filter of micropore ceramic filter material is 150 μm.
Embodiment 3
A kind of feldspar in powder production sewage treatment method, specific processing step and sequence are as follows:
1) ultrasound-flocculation treatment: potassium feldspar production waste is input in sedimentation basin by pumping, by phonochemistry generatorProbe protrude under sewage level 10cm at, composite flocculation agent is added in sewage, stirring, while open phonochemistry generator intoRow ultrasonic treatment, makes composite flocculation agent and sewage hybrid reaction 20min, generates flocculation water, and the flocculate in flocculation water is naturally heavyDrop 3 hours, sewage is layered as supernatant and solid precipitation；
The supersonic frequency of the ultrasonic treatment is 40kHz；
The composite flocculation agent is mixed by the raw material of following parts by weight: 12 parts of cationic polyacrylamide, ferric sulfate 5Part, 3 parts of polyaluminum sulfate ferric-aluminum chloride；The additive amount of the composite flocculation agent is that every 1L sewage adds 3g；
2) it is concentrated: supernatant being sent into progress concentration in concentration tower and obtains concentrate；
3) it squeezes: concentrate being sent into squeeze and filter in squeezer, clear water is obtained, is flowed into clear water in clear water reserviors, whenWhen potassium feldspar ore dressing, with pump from drawing water and being transported in potassium feldspar dressing plant in clear water reserviors, used for ore dressing water；Wherein, it pressesThe filtering material for squeezing filtering is micropore ceramics, and the pore size filter of micropore ceramic filter material is 300 μm.
Comparative example 1
Comparative example 1 is substantially the same manner as Example 1, and difference is only that: the composite flocculation agent of comparative example 1 is by following parts by weightRaw material mixes: 4 parts of ferric sulfate, 2 parts of polyaluminum sulfate ferric-aluminum chloride.
Comparative example 2
Comparative example 2 is substantially the same manner as Example 1, and difference is only that: the composite flocculation agent of comparative example 2 is by following parts by weightRaw material mixes: 11 parts of cationic polyacrylamide, 2 parts of polyaluminum sulfate ferric-aluminum chloride.
Comparative example 3
Comparative example 3 is substantially the same manner as Example 1, and difference is only that: the composite flocculation agent of comparative example 3 is by following parts by weightRaw material mixes: 11 parts of cationic polyacrylamide, 4 parts of ferric sulfate.
Contrast effect verifying:
In order to verify the synergy of each constituent in composite flocculation agent provided by the invention, by embodiment 1-3 and rightThe method of ratio 1-3 is respectively divided into experimental group 1-3 and control group 1-3, by the method for each group respectively to six groups of pollution levelsProduction waste handled, the results are shown in Table 1:
1 water-quality test table of table
| COD(mg/L) | SS(mg/L) |
| Experimental group 1 | 73 | 43 |
| Experimental group 2 | 65 | 47 |
| Experimental group 3 | 58 | 41 |
| Control group 1 | 121 | 75 |
| Control group 2 | 113 | 82 |
| Control group 3 | 127 | 69 |
By 1 test result of table it is found that the present invention uses cationic polyacrylamide, ferric sulfate and polyaluminum sulfate ferric-aluminum chlorideThe flocculant of compounding, compared with comparative example 1-3 omits any of them, in the case where the identical situation of total amount is added in flocculant, thisInvention is more excellent to the effect after feldspar in powder production sewage treatment.
Above description is the detailed description for the present invention preferably possible embodiments, but embodiment is not limited to this hairBright patent claim, it is all the present invention suggested by technical spirit under completed same changes or modifications change, should all belong toIn the covered the scope of the patents of the present invention.