CN108483549A - The purification method of rainwater runoff pollution object and scavenging material containing quartz sand - Google Patents
The purification method of rainwater runoff pollution object and scavenging material containing quartz sand Download PDFInfo
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- CN108483549A CN108483549A CN201810279489.9A CN201810279489A CN108483549A CN 108483549 A CN108483549 A CN 108483549A CN 201810279489 A CN201810279489 A CN 201810279489A CN 108483549 A CN108483549 A CN 108483549A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/001—Runoff or storm water
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- Environmental & Geological Engineering (AREA)
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Abstract
The present invention provides a kind of purification method of rainwater runoff pollution object and containing the scavenging material of quartz sand, which includes：Gathered materials with concrete dynamic modulus cement concrete by addition water purification filtration work stone sand and rainwater runoff pollution object is purified, water purification filtration work stone sand is laid below concrete dynamic modulus cement concrete gathers materials, rainwater runoff pollution object includes suspended matter, ammonia nitrogen pollutant and total phosphor contaminant, which includes that concrete dynamic modulus cement concrete gathers materials and lay the quartz sand below concrete dynamic modulus cement concrete gathers materials.The present invention can improve the clean-up effect that concrete dynamic modulus cement concrete gathers materials to rainwater runoff pollution object after water purification filtration work stone sand is added, and especially have a very significant increase to the clean-up effect of ammonia nitrogen pollutant and total phosphor contaminant.Therefore, which can directly effectively improve the clean-up effect of concrete dynamic modulus cement concrete, and can flexibly cope with the environment of different pollutants, so as to which the pollution problem of runoff sewage is effectively relieved.
Description
Technical field
The invention belongs to rainwater pollution technical fields, and in particular to a kind of purification method of rainwater runoff pollution object and contain
The scavenging material of quartz sand.
Background technology
Global water resources are in short supply at present, environmental degradation, Ecological Civilization Construction demand increasingly increase, and therefore, study green ring
The Water warfare of the concrete dynamic modulus ground surface material of guarantor can allow concrete dynamic modulus to be mated formation efficiently and effectively in water resource saving, ecological sustainability
It is played a role with environmental protection etc..Marine site neighboring towns are that can pass through for the major requirement of concrete dynamic modulus porous pavement
Permeable pavement realizes that rainwater penetrates into soil or returns and is discharged into rivers and makes full use of water resource, makes rainwater recycle using turning waste into wealth.So
And the research of current concrete dynamic modulus cement concrete has also been in the purifying property of rainwater runoff pollution and affecting laws etc.
Step section, although concrete dynamic modulus cement concrete has preferable clean-up effect to solid suspension, for ammonia nitrogen pollutant and
For total phosphor contaminant almost without effective detergent power, it is even more impossible to the pollution problems to varying environment effectively to be solved.
Invention content
The present invention is directed to deficiency in the prior art, and primary and foremost purpose is to provide a kind of purification side of rainwater runoff pollution object
Method.
Second object of the present invention is the purification material containing quartz sand obtained by the purification method of rainwater runoff pollution object
Material.
In order to achieve the above objectives, solution of the invention is：
A kind of purification method of rainwater runoff pollution object comprising following steps：
Gathered materials to the progress of rainwater runoff pollution object only by the way that filtrate (i.e. water purification filtrate) and concrete dynamic modulus cement concrete is added
Change, filtrate is 1 with the thickness ratio that concrete dynamic modulus cement concrete gathers materials:5‐4:5.
In fact, filtrate is laid below concrete dynamic modulus cement concrete gathers materials.
Preferably, filtrate is quartz sand, and filtrate includes but not limited to quartz sand.
Preferably, the grain size of filtrate is 1.1-1.9mm, specific surface area 100-800m2/g。
Preferably, concrete dynamic modulus cement concrete gathers materials any one in basalt or limestone.
Preferably, the grain size that concrete dynamic modulus cement concrete gathers materials is 4.75-9.50mm, specific surface area 200-900m2/g。
Preferably, rainwater runoff pollution object includes but not limited to suspended matter, ammonia nitrogen pollutant and total phosphor contaminant.
A kind of scavenging material containing quartz sand, is obtained by above-mentioned purification method.
Gather materials and lay in concrete dynamic modulus cement concrete collection in fact, the scavenging material includes concrete dynamic modulus cement concrete
Expect that following quartz sand, quartz sand are 1 with the thickness ratio that concrete dynamic modulus cement concrete gathers materials:5‐4:5.
Preferably, concrete dynamic modulus cement concrete gathers materials any one in basalt or limestone.
Preferably, the grain size that concrete dynamic modulus cement concrete gathers materials is 4.75-9.50mm, specific surface area 200-900m2/g。
Preferably, the grain size of quartz sand is 1.1-1.9mm, specific surface area 100-800m2/g。
By adopting the above scheme, the beneficial effects of the invention are as follows：
The first, the present invention is gathered materials by addition water purification filtration work stone sand and concrete dynamic modulus cement concrete can improve concrete dynamic modulus
The clean-up effect that cement concrete gathers materials to suspended matter, ammonia nitrogen pollutant and total phosphor contaminant, especially to ammonia nitrogen pollutant and always
The clean-up effect of phosphor contaminant has a very significant increase.Therefore, the purification method of the rainwater runoff pollution object can directly have
Effect ground improves the clean-up effect of concrete dynamic modulus cement concrete, and can flexibly cope with the environment of different pollutants, so as to have
Effect alleviates the pollution problem of runoff sewage, i.e., is of great significance to the detergent power of different runoff pollution environment.
The second, purification method of the invention has the characteristics that realistic meaning, theoretical property are strong, easy to operate and adaptable,
Compared with gathering materials only with concrete dynamic modulus cement concrete and carrying out purification, permeable pavement structure diameter more can be significantly improved
The removal ability for flowing pollutant, to reduce influence of the Runoff contaminants to the ecological environment in neighbouring basin.
Description of the drawings
Fig. 1 is that concrete dynamic modulus cement concrete gathers materials and be added water purification filtration work stone sand in the embodiment of the present invention and comparative example
To the clean-up effect schematic diagram of rainwater runoff pollution object.
Fig. 2 is total phosphorus canonical plotting in the rainwater runoff pollution object obtained in present invention experiment 2.
Fig. 3 is ammonia nitrogen canonical plotting in the rainwater runoff pollution object obtained in present invention experiment 3.
Specific implementation mode
The present invention provides a kind of purification method of rainwater runoff pollution object and containing the scavenging material of quartz sand.
<The purification method of rainwater runoff pollution object>
A kind of purification method of rainwater runoff pollution object comprising following steps：
Gathered materials with concrete dynamic modulus cement concrete by addition water purification filtrate and rainwater runoff pollution object is purified, water purification filtration
The thickness ratio that material gathers materials with concrete dynamic modulus cement concrete can be 1:5‐4:5, preferably 3:5.
In fact, water purification filtrate is laid below concrete dynamic modulus cement concrete gathers materials.
[water purification filtrate]
Water purification filtrate is quartz sand, and water purification filtrate includes but not limited to quartz sand.
The grain size of quartz sand can be 1.1-1.9mm, preferably 1.5mm；Specific surface area can be 100-800m2/ g, it is excellent
It is selected as 400m2/ g, Mohs' hardness 7.
Natural quartz ore is usually used in quartz sand, through broken, washes, drying, at a kind of water made of postsearch screening
Manage filtrate；The filtrate have the characteristics that free from admixture, without corner angle, density is big, high mechanical strength and dirt-carrying energy line of force service life are long,
It is the ideal material of Water Treatment.When suspended particulate moves to filtrate (quartz sand) surface in water, in Van der Waals force and
Under electrostatic force interaction, suspended particulate is adsorbed on filtrate (quartz sand) particle surface or is adhered to filtrate (quartz sand) table
On the particle that face was originally adsorbed.In addition, the bridging action of coagulated particles can also exist.Wherein, suction-operated depends primarily on filter
Expect the Surface Physical Chemistry property of particle in (quartz sand) and water.
In fact, Mohs' hardness is to indicate a kind of standard of hardness of mineral, not absolute hardness value, but it is hard according to mineral
The sequence of degree indicates.
[concrete dynamic modulus cement concrete gathers materials]
Concrete dynamic modulus cement concrete gather materials in basalt or limestone any one, certainly, concrete dynamic modulus cement is mixed
Solidifying soil gathers materials including but not limited to basalt or limestone.
The grain size that concrete dynamic modulus cement concrete gathers materials can be 4.75-9.50mm, preferably 5mm；Specific surface area can be
200‐900m2/ g, preferably 200m2/g。
Wherein, concrete dynamic modulus cement concrete, which gathers materials, is mixed using cement, water and water permeable concrete reinforcing agent (cementing material) with high-quality
The single particle size or gap-graded aggregate of amount are formed, and are the mixing material of 15-25% to obtain having porosity, are allowed rain
Water rapid osmotic is to following soil horizon or reservoir bed.
[rainwater runoff pollution object]
Rainwater runoff pollution object further includes organic pollution other than suspended matter, ammonia nitrogen pollutant and total phosphor contaminant
With heavy metal etc..
(suspended matter)
Suspended matter (Suspended Solids) is the most basic pollutant of rainwash, including organic component and without unit
Divide two major classes, organic component is mainly biological remains, excreta and decomposition product, by the carbohydrate such as cellulose, starch, egg
The compositions such as white matter, lipid material and chitin；Inorganic component includes land source mineral clast (such as quartz, feldspar, carbonate and clay)
With aquatic mineral (such as glauconite and silicate), the removal index of suspended matter is characterized with the concentration of suspended matter.
In fact, road surface rain Runoff contaminants are mainly determined by the earth's surface sediment before rainfall, therefore, it is
Realize the maximum comparability with practical runoff sewage, the present invention carries out rainwater diameter using by the way of artificial preparation rainwater water sample
Flow the purification analysis of pollutant.
The process for preparation of rainwater runoff pollution object water sample of the present invention is：
(1), the road table sediment for randomly selecting the North Roads Jia Song, Shanghai City is collected and is placed in drying receptacle for use,
Then road table sediment is dissolved in distilled water or pure water, obtains the first mixed solution；
(2), the first mixed solution is collected into the first filtrate through filter paper (aperture is 75 μm)；
(3), the first filtrate is placed in the beaker equipped with distilled water, is placed in uniform stirring 30min on magnetic stirring apparatus,
So that it is uniformly mixed, obtains the second mixed solution；
(4), it takes miillpore filter to be put in the measuring cup of prior constant weight flat nozzle Smooth forceps sub-folder, moves into baking oven in 103
It takes out to set in drier after drying 30min at~105 DEG C and be cooled to room temperature；
(5), miillpore filter is taken out, is correctly placed on the filter membrane pallet of membrane filter, is capped mating funnel,
It is used in combination clip to fix；Then vacuum filtration pipe is assembled with bottle,suction, opens vacuum filtration machine；
(6), the second mixed solution is poured into the funnel (500ml) above bottle,suction, waits for that the second mixed solution is completely logical
After miillpore filter or miillpore filter are crossed there is no moisture outflow, stop filtering, takes out the miillpore filter with residue and be simultaneously placed on
In beaker after cleaning, drying；
(7), the beaker of the miillpore filter with residue is placed in 103~105 DEG C of drying in oven 2 hours, later
It takes out beaker and is cooled to room temperature, residue is scraped and collected from miillpore filter；
(8), step (5) to step (7) is repeated, obtains final residue, and miillpore filter is dried repeatedly, cools down, claim
Amount the, until weight difference≤0.2mg weighed twice；
(9), 1000mg final residues are weighed to be placed in beaker, 1L distilled water is added, mixing is placed on magnetic stirring apparatus
On stir evenly, you can obtain 1000mg/L rainwater runoff pollution object water sample namely 1L rainwater runoff pollution object water samples in contain
There are 1000mg suspended matters.
Wherein, rainwater runoff pollution object water sample is detected within 24 hours.
(total phosphor contaminant)
In total phosphor contaminant phosphorus nearly all by it is various it is phosphatic in the form of exist, such as orthophosphates, condensed phosphate and have
The phosphate that machine combines, the removal index of total phosphor contaminant is characterized with total phosphorus content.
In fact, it is in neutrallty condition that total phosphorus yield, which uses ammonium molybdate spectrophotometric method (GB 11893-89), principle,
It is lower to make phosphorous sample digestion with potassium peroxydisulfate (or perchloric acid is added after nitric acid first is added), the phosphorous whole of institute is oxidized to positive phosphorus
Hydrochlorate.In acid condition, after orthophosphates generates phosphato-molybdic heteropolyacid with ammonium molybdate, antimony tartrate oxygen nak response, by Vitamin C
Acid reduction, generates blue complex.Then the content of total phosphorus is checked in by absorbance from standard curve.
Phosphate stock solution is prepared：Potassium dihydrogen phosphate is dried into 2h at 110 DEG C, and cooling in drier；Then claim
Potassium dihydrogen phosphate after taking 0.217g to dry is soluble in water, and moves into 1000mL volumetric flasks, and 5mL sulfuric acid (93wt%) is added,
It is diluted with water to graticule, i.e. 1mL phosphate stock solution includes 50 μ g phosphorus.
Phosphate standard liquid is prepared：It takes 10.0mL phosphate stock solutions to be transferred in 250mL volumetric flasks, is diluted with water to mark
Line is simultaneously uniformly mixed, i.e., 1.00mL phosphate standards liquid includes 2.0 μ g phosphorus.
Ascorbic acid solution is prepared：10g ascorbic acid is soluble in water, and it is diluted to 100mL, it is then stored at palm fibre
It is spare in color vial.
Molybdate solution is prepared：13g ammonium molybdates are dissolved in 100mL water, ammonium molybdate solution is obtained；By 0.35g tartaric acid
Antimony oxygen potassium is dissolved in 100mL water, obtains antimony tartrate potassium solution；300mL sulfuric acid (93wt%) finally is added in ammonium molybdate solution
It is interior, it adds antimony tartrate potassium solution and is uniformly mixed, be stored in spare in Brown Glass Brown glass bottles and jars only.
The standard value continuous mode of the total phosphorus content of the present invention is as follows：
(1), 5 brace plug graded tubes are taken, 0.00mL, 0.50mL, 1.00mL, 3.00mL and 5.00mL phosphate are separately added into
Titer adds water to 25mL；
(2), 1mL ascorbic acid solutions are added into tool plug graded tube respectively to be uniformly mixed, 2mL molybdates is added after 30s
Solution is uniformly mixed, and places 15min；
(3), using the cuvette that light path is 30mm, at 700nm wavelength, reference is done with water, measures absorbance.It deducts empty
After the absorbance tested in vain, the standard value of total phosphorus content is checked in from standard curve.
It calculates：Phosphate (P, mg/L)=m/v；
In formula：The phosphorus amount (μ g) that m-is checked in by standard curve；
V-volume of sample (mL).
(ammonia nitrogen pollutant)
Ammonia nitrogen refers in water with nomadic nitrogen (NH in ammonia nitrogen pollutant3) and ammonium ion (NH4 +) nitrogen existing for form, use ammonia nitrogen
Content characterizes the removal index of nitrogen pollutant.
In fact, it is with free state that the measurement of ammonia nitrogen, which uses Berthelot spectrophotometry (HJ 535-2009), principle,
Ammonia or the forms such as ammonium ion existing for ammonia nitrogen reacted with nessler reagent and generate light red brown complex compound, the absorbance of the complex compound
It is directly proportional to ammonia-nitrogen content, absorbance is measured at wavelength 420nm (visible light).Then it is looked by absorbance from standard curve
Obtain the content of ammonia nitrogen.
Nessler reagent is prepared：It weighs 16g sodium hydroxides and is dissolved in 50mL water and be mixed to get sodium hydroxide solution, and be cooled to
Room temperature；It separately weighs 7g potassium iodide and 10g mercuric iodixdes is dissolved in water and being uniformly mixed, third mixed solution is obtained, then by the third
Mixed solution is added in sodium hydroxide solution under agitation, is diluted with water to 100mL, is stored in spare in polyethylene bottle.
Potassium sodium tartrate solution is prepared：It weighs 50g sodium potassium tartrate tetrahydrates to be dissolved in 100mL water, heating is boiled to remove deammoniation, cold
But to room temperature, it is settled to 100mL.
Ammonia nitrogen Standard Reserving Solution is prepared：It is soluble in water to weigh 3.819g ammonium chlorides (top pure grade), and moves into 1000ml capacity
In bottle and it is diluted with water to graticule.
Ammonia nitrogen standard working solution is prepared：It pipettes in 5ml ammonia nitrogen Standard Reserving Solutions merging 500ml volumetric flasks and is diluted with water to
Contain 10 μ g ammonia nitrogens in graticule, i.e. 1ml ammonia nitrogens standard working solution.
The standard value continuous mode of ammonia-nitrogen content of the present invention is：
(1), be separately added into 8 50ml colorimetric cylinders 0.00ml, 0.50ml, 1.00ml, 2.00ml, 4.00ml,
6.00ml, 8.00ml and 10.00ml ammonia nitrogen standard working solution, add water to graticule；
(2), 1.00ml potassium sodium tartrate solutions are first added to be uniformly mixed, add 1.5ml nessler reagents and be uniformly mixed, puts
Set 10min；
(3), at wavelength 420nm, reference is done with water, measures absorbance, after the absorbance for deducting blank assay, from standard
The standard value of ammonia-nitrogen content is checked on curve.
It calculates：Ammonia nitrogen (N, mg/L)=1000m/v；
In formula：The ammonia nitrogen amount (mg) that m-is checked in by standard curve；
V-volume of sample (mL).
<Scavenging material containing quartz sand>
It is a kind of to obtain the scavenging material containing quartz sand by above-mentioned purification method.
Gather materials and lay in concrete dynamic modulus cement concrete collection in fact, the scavenging material includes concrete dynamic modulus cement concrete
Expect that following quartz sand, quartz sand are 1 with the thickness ratio that concrete dynamic modulus cement concrete gathers materials:5‐4:5.
[concrete dynamic modulus cement concrete gathers materials]
Concrete dynamic modulus cement concrete gather materials in basalt or limestone any one.
Wherein, the grain size that concrete dynamic modulus cement concrete gathers materials can be 4.75-9.50mm, preferably 5mm；Specific surface area can
Think 200-900m2/ g, preferably 200m2/g。
[quartz sand]
The grain size of quartz sand can be 1.1-1.9mm, preferably 1.5mm；Specific surface area can be 100-800m2/ g, it is excellent
It is selected as 400m2/g。
The present invention will be further described with reference to the accompanying drawings.
Embodiment 1：
The purification method of the rainwater runoff pollution object of the present embodiment includes the following steps：
(1), one piece of circular hole (aperture 1mm) plastic plate is placed at the one third apart from plastic cylinder bottom of the barrel,
Quartz sand, grain size 1.5mm, specific surface area 400m is placed above in circular hole plastic plate2/ g is highly 3cm；
(2), it is 5mm, specific surface area 200m grain size to be placed above in quartz sand2/ g, a diameter of 10cm are highly 5cm
Concrete dynamic modulus cement concrete gather materials and (be molded by basalt)；
(3), the excessive hole cement concrete of rainwater runoff pollution object aqueous sample stream configured is gathered materials and quartz sand, is obtained
First quartz sand scavenging solution.
Wherein, the grain size of quartz sand within 1.1-1.9mm, specific surface area is in 100-800m2It is all possible within/g.
The grain size that concrete dynamic modulus cement concrete gathers materials within 4.75-9.50mm, specific surface area is in 200-900m2Within/g
All it is possible.
Embodiment 2：
The purification method of the rainwater runoff pollution object of the present embodiment includes the following steps：
(1), one piece of circular hole (aperture 1mm) plastic plate is placed at the one third apart from plastic cylinder bottom of the barrel,
Quartz sand, grain size 1.5mm, specific surface area 400m is placed above in circular hole plastic plate2/ g is highly 3cm；
(2), it is 5mm, specific surface area 200m grain size to be placed above in quartz sand2/ g, a diameter of 10cm are highly 5cm
Concrete dynamic modulus cement concrete gather materials and (be molded by basalt)；
(3), the phosphate standard liquid configured is slowly flowed across concrete dynamic modulus cement concrete to gather materials and quartz sand, obtains
Two quartz sand scavenging solutions.
Embodiment 3：
The purification method of the rainwater runoff pollution object of the present embodiment includes the following steps：
(1), one piece of circular hole (aperture 1mm) plastic plate is placed at the one third apart from plastic cylinder bottom of the barrel,
Quartz sand, grain size 1.5mm, specific surface area 400m is placed above in circular hole plastic plate2/ g is highly 3cm；
(2), it is 5mm, specific surface area 200m grain size to be placed above in quartz sand2/ g, a diameter of 10cm are highly 5cm
Concrete dynamic modulus cement concrete gather materials and (be molded by basalt)；
(3), the ammonia nitrogen standard working solution configured is slowly flowed across concrete dynamic modulus cement concrete to gather materials and quartz sand, is obtained
Third quartz sand scavenging solution.
Comparative example 1：
The purification method of the rainwater runoff pollution object of this comparative example includes the following steps：
(1), one piece of circular hole (aperture 1mm) plastic plate is placed at the one third apart from plastic cylinder bottom of the barrel,
It is 5mm, specific surface area 200m that grain size, which is placed above, in circular hole plastic plate2/ g, a diameter of 10cm are highly the concrete dynamic modulus water of 5cm
Cement concrete gathers materials and (is molded by basalt)；
(2), the rainwater runoff pollution object water sample configured is slowly flowed across concrete dynamic modulus cement concrete to gather materials, obtains first
Concrete filtrate.
Comparative example 2：
The purification method of the rainwater runoff pollution object of this comparative example includes the following steps：
(1), one piece of circular hole (aperture 1mm) plastic plate is placed at the one third apart from plastic cylinder bottom of the barrel,
It is 5mm, specific surface area 200m that grain size, which is placed above, in circular hole plastic plate2/ g, a diameter of 10cm are highly the concrete dynamic modulus water of 5cm
Cement concrete gathers materials and (is molded by basalt)；
(2), the phosphate standard liquid configured is slowly flowed across concrete dynamic modulus cement concrete to gather materials, obtains the second concrete
Filtrate.
Comparative example 3：
The purification method of the rainwater runoff pollution object of this comparative example includes the following steps：
(1), one piece of circular hole (aperture 1mm) plastic plate is placed at the one third apart from plastic cylinder bottom of the barrel,
It is 5mm, specific surface area 200m that grain size, which is placed above, in circular hole plastic plate2/ g, a diameter of 10cm are highly the concrete dynamic modulus water of 5cm
Cement concrete gathers materials and (is molded by basalt)；
(2), the ammonia nitrogen standard working solution configured is slowly flowed across concrete dynamic modulus cement concrete to gather materials, obtains third coagulation
Native filtrate.
<Experiment>
Following test is carried out respectively with the product obtained in embodiment and comparative example.
<Experiment 1>
The purpose of this experiment is to probe into rainwater runoff pollution object water sample by quartz sand and concrete dynamic modulus coagulating cement is added
After soil gathers materials and concrete dynamic modulus cement concrete gather materials and (be added without quartz sand) in concentration of suspension situation of change.
According to《The measurement gravimetric method of National Standard of the People's Republic of China's water quality suspended matter》(GB/T11901-1989) come
The concentration of suspended matter is measured, specific continuous mode is as follows：
(1), miillpore filter is taken to be put in the beaker of prior constant weight flat nozzle Smooth forceps sub-folder, move into baking oven in 103~
It takes out to set in drier after 105 DEG C of drying 30min and be cooled to room temperature, claim its weight.Drying, cooling, weighing is repeated, until
Weight difference≤the 0.2mg weighed twice, miillpore filter is correctly placed on the filter membrane pallet of membrane filter, is capped mating
Funnel is used in combination clip to fix, and moistens miillpore filter with distilled water, and constantly filter；
(2), the first quartz sand scavenging solution and the first concrete filtrate are stirred evenly respectively, is poured into above different bottle,suctions
Funnel in so that the first quartz sand scavenging solution and the first concrete filtrate are all by miillpore filter, respectively again with each
Continuously washing three times, continues to filter to remove traces of moisture the distilled water of 10mL, then stops filtering, then takes out and be loaded with filtering
The miillpore filter of residue after the first concrete filtrate of miillpore filter and filtering of residue after first quartz sand scavenging solution
It is individually placed in the beaker after cleaning, drying；
(3), above-mentioned beaker is placed in 103~105 DEG C of drying in oven 2 hours, above-mentioned beaker is then taken out and is cooled to
Room temperature dries, is cooling, weighing repeatedly, until the weight difference≤0.4mg weighed twice, records miillpore filter and burning at this time
The weight of cup.
According to following formula can acquire purification after Suspended Substance in Water Sample concentration, and calculate through addition quartz sand with it is more
Gather materials and (be added without quartz sand) purification efficiency to suspended matter with concrete dynamic modulus cement concrete after hole cement concrete gathers materials,
As shown in Figure 1.
In formula：
C --- concentration of suspension in water, mg/L；
A --- residue+miillpore filter+beaker, g；
B --- miillpore filter+beaker, g；
V --- volume of sample, mL.
<Experiment 2>
The purpose of this experiment is that probing into phosphate standard liquid gathers materials by quartz sand is added with concrete dynamic modulus cement concrete
The situation of change of total phosphorus content in gathering materials with concrete dynamic modulus cement concrete afterwards and (be added without quartz sand).
Specific operation process is as follows：
(1), it takes 25mL the second quartz sand scavenging solutions and 25mL the second concrete filtrates to be respectively placed in tool plug graded tube, takes
When should carefully shake up, with obtain dissolving part and floating parts all have representative sample；
(2), potassium peroxydisulfate is added into the tool plug graded tube equipped with the second quartz sand scavenging solution respectively in neutral conditions
The digestion solution of the second quartz sand scavenging solution is obtained, potassium peroxydisulfate is added into the tool plug graded tube equipped with the second concrete filtrate and obtains
To the digestion solution of the second concrete filtrate, then 1mL ascorbic acid solutions are added into above-mentioned digestion solution respectively and are uniformly mixed, 30s
2mL molybdate solutions are added afterwards to be uniformly mixed, place 15min；
(3), the use of light path is 30mm cuvettes, under 700nm wavelength, reference is done with water, measures absorbance.Deduct blank
After the absorbance of experiment, the content of phosphorus is checked in from standard curve, and is calculated by quartz sand and concrete dynamic modulus coagulating cement is added
Gather materials and (be added without quartz sand) purification efficiency to total phosphorus with concrete dynamic modulus cement concrete after soil gathers materials, as shown in Figure 2.
It calculates：Phosphate (P, mg/L)=m/v；
In formula：The phosphorus amount (μ g) that m-is checked in by standard curve；
V-volume of sample (mL).
<Experiment 3>
The purpose of this experiment is to probe into ammonia nitrogen standard working solution by quartz sand and concrete dynamic modulus cement concrete collection is added
After material and concrete dynamic modulus cement concrete gather materials and (be added without quartz sand) in ammonia-nitrogen content situation of change.
Specific operation process is as follows：
(1), it takes 2ml third quartz sand scavenging solutions and 2ml third concrete filtrates to be respectively placed in 50mL colorimetric cylinders, and adds
Water is diluted to graticule；
(2), it is mixed that 1.00ml potassium sodium tartrate solutions are first added into the colorimetric cylinder equipped with third quartz sand scavenging solution respectively
It closes uniformly, adds 1.5ml nessler reagents and be uniformly mixed；1.00ml is first added into the colorimetric cylinder equipped with third concrete filtrate
Potassium sodium tartrate solution is uniformly mixed, and is added 1.5ml nessler reagents and is uniformly mixed, then places 10min；
(3), at wavelength 420nm, reference is done with water, measures absorbance, after the absorbance for deducting blank assay, from standard
It checks in the content of ammonia nitrogen on curve, and calculates after quartz sand and concrete dynamic modulus cement concrete is added and gathers materials and concrete dynamic modulus water
The purification efficiency that cement concrete gathers materials and (is added without quartz sand) to ammonia nitrogen, as shown in Figure 3.
It calculates：Ammonia nitrogen (N, mg/L)=1000m/v；
In formula：The ammonia nitrogen amount (mg) that m-is checked in by standard curve；
V-volume of water sample (mL).
To sum up, as shown in Figure 1, concrete dynamic modulus cement concrete gather materials and (be added without quartz sand) to the clean-up effect of suspended matter compared with
Good, purification efficiency reaches 63.3%；After addition quartz sand gathers materials with concrete dynamic modulus cement concrete, with concrete dynamic modulus cement concrete
Gather materials and (be added without quartz sand) and compare, addition quartz sand gathers materials with concrete dynamic modulus cement concrete can further increase to suspended matter
Clean-up effect, i.e. purification efficiency reaches 70.9%.
Concrete dynamic modulus cement concrete gathers materials and (is added without quartz sand) to ammonia nitrogen almost without detergent power, purification efficiency pole
It is low, value 14.6%；After addition quartz sand gathers materials with concrete dynamic modulus cement concrete, gather materials with concrete dynamic modulus cement concrete
(being added without quartz sand) is compared, and the purification significantly improved to ammonia nitrogen of gathering materials of quartz sand and concrete dynamic modulus cement concrete is added and imitates
Fruit, purification efficiency reach 67.4%；Therefore, it is added after quartz sand gathers materials with concrete dynamic modulus cement concrete and significantly improves concrete dynamic modulus
The clean-up effect that cement concrete gathers materials and (is added without quartz sand) to ammonia nitrogen.
Concrete dynamic modulus cement concrete gathers materials and (is added without quartz sand) to total phosphorus almost without detergent power, purification efficiency pole
It is low, value 14.4%；After addition quartz sand gathers materials with concrete dynamic modulus cement concrete, gather materials with concrete dynamic modulus cement concrete
(being added without quartz sand) is compared, and the purification significantly improved to total phosphorus of gathering materials of quartz sand and concrete dynamic modulus cement concrete is added and imitates
Fruit, water purification filtration work stone sand are fine to the clean-up effect of total phosphorus, and purification efficiency reaches 68.3%；Therefore, be added quartz sand with it is more
Hole cement concrete can significantly improve concrete dynamic modulus cement concrete after gathering materials and gather materials and (be added without quartz sand) to the net of total phosphorus
Change effect.
In short, compared with being added without water purification filtration work stone sand, water purification filtration work stone sand and concrete dynamic modulus cement concrete is added
Concrete dynamic modulus cement concrete can be improved after gathering materials to gather materials and (be added without quartz sand) to the pollution of suspended matter, ammonia nitrogen pollutant and total phosphorus
The clean-up effect of object especially has a very significant increase to the clean-up effect of ammonia nitrogen pollutant and total phosphor contaminant, can apply
Nearby in the more road surface in dining room.Therefore, the purification method of the rainwater runoff pollution object can be effectively improved directly porous
The clean-up effect of gap cement concrete, and the environment of different pollutants can be flexibly coped with, alleviate runoff sewage so as to imitate
Pollution problem, i.e., be of great significance to the detergent power of different runoff pollution environment.
The above-mentioned description to embodiment is that this hair can be understood and used for the ease of those skilled in the art
It is bright.Those skilled in the art obviously readily can make various modifications to these embodiments, and described herein one
As principle be applied in other embodiment, without having to go through creative labor.Therefore, the present invention is not limited to the above embodiments.
Those skilled in the art's principle according to the present invention, not departing from improvement that scope of the invention is made and modification all should be at this
Within the protection domain of invention.
Claims (10)
1. a kind of purification method of rainwater runoff pollution object, it is characterised in that：It includes the following steps：
Gather materials with concrete dynamic modulus cement concrete rainwater runoff pollution object purified by the way that filtrate is added, the filtrate with it is described
The thickness ratio that concrete dynamic modulus cement concrete gathers materials is 1:5‐4:5.
2. purification method according to claim 1, it is characterised in that：The filtrate is quartz sand.
3. purification method according to claim 1, it is characterised in that：The grain size of the filtrate is 1.1-1.9mm, specific surface
Product is 100-800m2/g。
4. purification method according to claim 1, it is characterised in that：The concrete dynamic modulus cement concrete gathers materials selected from the Black Warrior
Any one in rock or limestone.
5. purification method according to claim 1, it is characterised in that：The grain size that the concrete dynamic modulus cement concrete gathers materials is
4.75-9.50mm specific surface area 200-900m2/g。
6. purification method according to claim 1, it is characterised in that：The rainwater runoff pollution object includes suspended matter, ammonia
Nitrogen pollutant and total phosphor contaminant.
7. according to claim 1-6 any one of them purification methods, it is characterised in that：The filtrate is laid in the concrete dynamic modulus
Below cement concrete gathers materials.
8. a kind of scavenging material containing quartz sand, it is characterised in that：It is by such as claim 1-7 any one of them purification method
And it obtains.
9. scavenging material according to claim 8, it is characterised in that：The scavenging material includes concrete dynamic modulus cement concrete
Gather materials and lays the quartz sand below the concrete dynamic modulus cement concrete gathers materials, the quartz sand and the concrete dynamic modulus water
The thickness ratio that cement concrete gathers materials is 1:5‐4:5.
10. scavenging material according to claim 9, it is characterised in that：The concrete dynamic modulus cement concrete gathers materials selected from profound
Any one in Wu Yan or limestone；And/or
The grain size that the concrete dynamic modulus cement concrete gathers materials is 4.75-9.50mm, specific surface area 200-900m2/g；And/or
The grain size of the quartz sand is 1.1-1.9mm, specific surface area 100-800m2/g。
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