CN104817148A - Poly ferro-silicon-titanium coagulant used for treating low-sludge amount water and preparation technology thereof - Google Patents
Poly ferro-silicon-titanium coagulant used for treating low-sludge amount water and preparation technology thereof Download PDFInfo
- Publication number
- CN104817148A CN104817148A CN201510165764.0A CN201510165764A CN104817148A CN 104817148 A CN104817148 A CN 104817148A CN 201510165764 A CN201510165764 A CN 201510165764A CN 104817148 A CN104817148 A CN 104817148A
- Authority
- CN
- China
- Prior art keywords
- revs
- titanium
- ferro
- water
- poly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention relates to a method for preparing a high-molecular ferro-silicon-titanium coagulant used for water treatment; wherein the high-molecular ferro-silicon-titanium coagulant is formed by production of nontoxic titanium mud solid refuse during a titanium white production process. The preparation method comprises the following steps: performing an acid leaching reaction at a first phase on titanium mud by a hydrochloric acid solution to obtain a leaching liquid I and a filter residue I; performing the acid leaching reaction at a second phase on the filter residue I by a concentrated sulfuric acid solution to obtain a leaching liquid II and a filter residue II; then performing an alkali leaching reaction on the filter residue II by highly basic; and finally performing an oxidation slaking reaction on a mixed leaching liquid of the leaching liquid I, the leaching liquid II and a leaching liquid III by an oxidizing agent. The coagulant used for water treatment has high efficiency for removing organic matter and chroma, and can be used for pretreatment and deep treatment for city sewage or industrial wastewater.
Description
Technical field
The invention belongs to water-treatment technology field, relate to a kind of water treatment use preparing low sludge quantity for main raw material with the metatitanic acid waste material produced in Producing Titanium Dioxide process and water glass and gather ferro-silico-titanium coagulating agent and technology of preparing thereof.
Background technology
Along with developing rapidly of Re-search on Urbanization process, sewage generation sharply increases, and government is increasingly strict to the requirement of environmental protection simultaneously, and cause sewage disposal scale and treatment capacity also expanding day, mud generation must increase fast.Sludge treatment expense accounts for 1/4th of whole Sewage Plant substantially to about half.For many years, specific resistance to filtration does not obtain enough attention, and what the mud of current more than 60% was taked is landfill disposal mode.The moisture percentage in sewage sludge of China's many Sewage Plant discharge every day is more than 99%, and after thickening, its water ratio is substantially more than 80%, and deep dehydration difficulty is very large, therefore occurs many big and medium-sized cities " mud floods city " phenomenon, brings hidden trouble to ecotope.Mud decrement is the concept of the newer disposing sludge about how of of proposing the nineties in last century, and being extension and the expansion that recycling sludge disposes concept, is a kind of source processing mode of mud.Domestic and international at present large quantity research has been carried out for sludge reduction technology, but what relate generally to is the decrement research of biological sludge, for how decrement chemical sludge but relates to seldom.Current Chinese sewage treatment area adopts more coagulating agent to be polymerize aluminum chloride, and treatment effect is more excellent, but the floc settling velocity that this coagulating agent is formed is slow, and moisture percentage in sewage sludge is high, and dehydration is difficulty comparatively.
In addition, along with the sustainable development of industrial or agricultural and the raising of people's living standard, noxious waste pollution becomes global problem, and China is as the region of rapid economic development, has become global solid waste and has polluted one of the heaviest country.Still there is use value in most of solid waste, therefore its resource utilization becomes the Main Means of process in other respects, wherein utilizes solid waste can prepare various inorganic, organic coagulants.National inventing patent as Chen Gang and Tang Deyao " is prepared method and the application (application number CN201310568550) of environment-friendly type flocculation agent " by discarded pericarp, the national inventing patent " a kind of preparation method (application number CN201310434407) of Polyaluminium iron diatomite flocculant " of Fu Limin, the national inventing patent " composite flocculant of a kind for the treatment of of dyeing and printing and preparation method thereof (application number CN201310326334) " of Haiyan Lu and Zhang Yan.Metatitanic acid waste material is a kind of substantially by the solid waste of abandoning, and derives from the production process of titanium dioxide.Titanium is described as " space metal ", and standing stock are enriched, and the reserves in the earth's crust are only second to iron, aluminium, magnesium, occupy the 4th, and the standing stock of China's titanium ranks first in the world.Titanium dioxide is one of important compound of titanium elements, the main component of titanium dioxide is titanium dioxide, be considered to a kind of white pigment that performance is best in the world at present, be widely used in the industry such as coating, plastics, papermaking, printing-ink, chemical fibre, rubber, makeup.China is not only titanium white production state the biggest in the world, is also titanium dioxide country of consumption the biggest in the world.The manufacture method of titanium dioxide mainly contains two kinds: sulfuric acid process and chlorination process, and chlorination process is many abroad to be adopted.China still based on sulfuric acid process, this method mainly with the low ilmenite that is easy to get of valency and sulfuric acid for main raw material, equipment is comparatively simple, and technology is also more ripe.But this technological process can produce a large amount of refuses and by product, namely metatitanic acid waste material is one of them.Metatitanic acid waste material is mainly containing nontoxic elements such as titanium, iron, silicon, and iron, silicon are the common element preparing inorganic coagulant, and titanium is the comparatively new element in coagulating agent preparation.Water glass, also known as sodium silicate, be the water-soluble silicate that a kind of cohesive force is stronger, be the mixture of multiple sodium polysilicate, be widely used in building field, price is lower.The preparation method of the polysilicon acid proposed first in nineteen thirty-seven by Baylis is exactly take water glass as raw material, the liquid with throwing out formed after acid neutralization.Therefore prepare water treatment coagulating agent with silicon, titanium, iron etc. for principal element and there is theory and practice basis.At present about patent prepared by the coagulating agent of siliceous titanium, relate to that " Polymeric silicic acid-polyferric sulfate titanium inorganic macromolecular composite flocculant and preparation method thereof and application (CN103342406A), this patent to be mixed with polyaluminum sulfate titanium solution by polymerization of silicic acid solution to obtain.In current domestic and foreign databases, have no the water treatment adopting metatitanic acid waste material and water glass to prepare and report with the pertinent literature of poly-ferro-silico-titanium coagulating agent.
Summary of the invention
The present invention improves the utility value of solid waste in ilmenite Production By Sulfuric Acid Process titanium white process and the chemical sludge amount reduced in water treatment, provides a kind of water treatment poly-ferro-silico-titanium coagulating agent and the technology of preparing thereof that adopt the metatitanic acid waste material that produces in sulfate process titanium dioxide production process and water glass to prepare low sludge quantity.
Water treatment of the present invention is as follows with the raw material composition and content gathering ferro-silico-titanium coagulating agent, and all percentage ratio is weight percentage:
Metatitanic acid waste material 5% ~ 15%
Water glass 4% ~ 11%
Water 30% ~ 60%
Massfraction is the concentrated sulfuric acid solution 25% ~ 40% of 60% ~ 90%
Massfraction is the dilution heat of sulfuric acid 0.08% ~ 2.5% of 30% ~ 50%
Molar fraction is the sodium hydroxide solution 0% ~ 6% of 1mol/L ~ 5mol/L
Additive 0.2% ~ 2.5%
The metatitanic acid waste material adopted is the wet type acid cleaning waste slag produced in sulfate process titanium dioxide production process, and wherein the mass content of titanium dioxide is 60% ~ 85%, and the mass content of ferric oxide is 5% ~ 15%;
The water glass adopted is technical grade liquid, and wherein silicon-dioxide quality content is 23% ~ 28%, and modulus is 3.1 ~ 3.4;
The concentrated sulfuric acid solution adopted, dilution heat of sulfuric acid and sodium hydroxide solution are technical grade;
The additive adopted is technical grade sodium chlorate, technical grade clorox, and sodium chlorate is solid, mass content >98%, and clorox is liquid, mass content >10%;
By above-mentioned each component preparation cost invention water treatment technical scheme of poly-ferro-silico-titanium coagulating agent be:
1, under the stirring velocity of 100 revs/min ~ 300 revs/min, the water of 14% ~ 26% is joined in the water glass of 4% ~ 11%, obtain water glass diluent, then, under the stirring velocity of 300 revs/min ~ 500 revs/min, the massfraction above-mentioned water glass diluent being joined 0.08% ~ 2.5% is in the dilution heat of sulfuric acid of 30% ~ 50%, and control ph is 1.5 ~ 3.5, stir 5 minutes ~ 10 minutes, leave standstill 3 hours ~ 16 hours, obtain polysilicon acid solution, for subsequent use;
2, under the stirring velocity of 50 revs/min ~ 100 revs/min, the water of 4% ~ 14% is joined in the metatitanic acid waste material of 5% ~ 15%, form a kind of paste, then be under the stirring velocity of 90 DEG C ~ 100 DEG C and 100 revs/min ~ 200 revs/min in temperature, by the massfraction of 25% ~ 40% be 60% ~ 90% concentrated sulfuric acid solution join in above-mentioned paste, carry out leaching reaction, controlling the reaction times is 1 hour ~ 2 hours, obtain leaching liquid, low whipping speed is under the condition of 100 revs/min ~ 300 revs/min, the water of 12% ~ 20% is joined in above-mentioned leaching liquid, obtain leaching diluent, filter, obtain filtrate, for subsequent use,
3, in temperature be 30 DEG C ~ 50 DEG C and 100 revs/min ~ 300 revs/min stirring velocity under, above-mentioned polysilicon acid solution is joined in above-mentioned filtrate, stirs after 2 minutes ~ 5 minutes, add the oxygenant of 0.2% ~ 2.5%, continue stirring 2 minutes ~ 5 minutes, obtain mixed solution, for subsequent use;
4, under the stirring velocity of 100 revs/min ~ 300 revs/min, be that the sodium hydroxide solution of 1mol/L ~ 5mol/L joins in above-mentioned mixed solution by the molar fraction of 0% ~ 6%, control ph is 0.5 ~ 3.5, then at room temperature slaking is left standstill, controlling the curing time is 3 hours ~ 16 hours, obtain the poly-ferro-silico-titanium coagulating agent stoste of water treatment, then dilute 1.5 times ~ 2 times, obtained yellow-green colour or the poly-ferro-silico-titanium coagulating agent liquid product of khaki water treatment;
5, adopt reverse contact spray drying process or seasoning method by the poly-ferro-silico-titanium coagulating agent stoste solidification of above-mentioned water treatment, in reverse contact spray-drying process, hot air flowrate is 100m
3/ h ~ 200m
3/ h, hot-air inlets temperature is 100 DEG C ~ 120 DEG C, or above-mentioned stoste is naturally dried, pulverized, and makes faint yellow or light khaki Powdered or granular solids product.
Advantage of the present invention is as follows:
1, the present invention with the wet type acid cleaning waste slag produced in sulfate process titanium dioxide production process and water glass for main raw material, with technical grade sulfuric acid, sodium hydroxide for auxiliary material, with technical grade sodium chlorate, clorox for additive, prepare that the less and settling velocity of sludge quantity is fast, the poly-ferro-silico-titanium coagulating agent of the water treatment of depollution performance efficiency.
2, technological process of the present invention is normal pressure, room temperature or low temperature, and equipment is simple, and technical maturity, easily realizes.
3, water treatment of the present invention is a kind of novel inorganic high score subclass water purification agent with poly-ferro-silico-titanium coagulating agent, can be applicable to the fields such as the serious Lake Water of municipal effluent, trade effluent and eutrophication, be particularly useful for the removal of the pollution substance such as Colority of Sewage Water and organism, heavy metal, algae, phosphorus.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail.
Embodiment 1
Under the stirring velocity of 100 revs/min ~ 300 revs/min, the water of 25L is joined in the water glass of 15L, obtain water glass diluent, then, under the stirring velocity of 300 revs/min ~ 500 revs/min, the massfraction above-mentioned water glass diluent being joined 3L is in the dilution heat of sulfuric acid of 45%, control ph 3 ~ 3.5, stir 5 minutes, leave standstill 5 hours, obtain polysilicon acid solution, for subsequent use.Under the stirring velocity of 50 revs/min ~ 100 revs/min, the water of 50L is joined in the metatitanic acid waste material of 50kg, form a kind of paste, then be under the stirring velocity of 90 DEG C ~ 100 DEG C and 100 revs/min ~ 200 revs/min in temperature, by the massfraction of 85L be 80% concentrated sulfuric acid solution join in above-mentioned paste, carry out leaching reaction, controlling the reaction times is 1 hour, obtain leaching liquid, low whipping speed is under the condition of 100 revs/min ~ 300 revs/min, the water of 100L is joined in above-mentioned leaching liquid, obtain leaching diluent, filter, obtain filtrate, for subsequent use.Be under the stirring velocity of 30 DEG C ~ 50 DEG C and 100 revs/min ~ 300 revs/min in temperature, above-mentioned polysilicon acid solution joined in above-mentioned filtrate, stirs after 2 minutes ~ 5 minutes, add the sodium chlorate of 5kg, continue stirring 5 minutes, obtain mixed solution, for subsequent use.Under the stirring velocity of 100 revs/min ~ 300 revs/min, be that the sodium hydroxide solution of 2mol/L joins in above-mentioned mixed solution by the molar fraction of 10L, control ph is 0.5 ~ 2.5, then at room temperature slaking is left standstill, controlling the curing time is 3 hours, obtain the poly-ferro-silico-titanium coagulating agent stoste of water treatment, then dilute 1.5 times ~ 2 times, the poly-ferro-silico-titanium coagulating agent liquid product of obtained khaki water treatment.
Embodiment 2
Under the stirring velocity of 100 revs/min ~ 300 revs/min, the water of 30L is joined in the water glass of 15L, obtain water glass diluent, then, under the stirring velocity of 300 revs/min ~ 500 revs/min, the massfraction above-mentioned water glass diluent being joined 4L is in the dilution heat of sulfuric acid of 40%, control ph 2 ~ 3, stir 5 minutes, leave standstill 12 hours, obtain polysilicon acid solution, for subsequent use.Under the stirring velocity of 50 revs/min ~ 100 revs/min, the water of 28L is joined in the metatitanic acid waste material of 28kg, form a kind of paste, then be under the stirring velocity of 90 DEG C ~ 100 DEG C and 100 revs/min ~ 200 revs/min in temperature, by the massfraction of 45L be 75% concentrated sulfuric acid solution join in above-mentioned paste, carry out leaching reaction, controlling the reaction times is 2 hours, obtain leaching liquid, low whipping speed is under the condition of 100 revs/min ~ 300 revs/min, the water of 50L is joined in above-mentioned leaching liquid, obtain leaching diluent, filter, obtain filtrate, for subsequent use.Be under the stirring velocity of 30 DEG C ~ 50 DEG C and 100 revs/min ~ 300 revs/min in temperature, above-mentioned polysilicon acid solution joined in above-mentioned filtrate, stirs after 2 minutes ~ 5 minutes, add the chlorine bleach liquor of 1L, continue stirring 2 minutes ~ 5 minutes, obtain mixed solution, for subsequent use.Under the stirring velocity of 100 revs/min ~ 300 revs/min, be that the sodium hydroxide solution of 3mol/L joins in above-mentioned mixed solution by the molar fraction of 3L, control ph is 0.5 ~ 2, then at room temperature slaking is left standstill, controlling the curing time is 16 hours, obtain the poly-ferro-silico-titanium coagulating agent stoste of water treatment, then dilute 1.5 times ~ 2 times, the poly-ferro-silico-titanium coagulating agent liquid product of obtained yellowish green water treatment.
Embodiment 3
Under the stirring velocity of 100 revs/min ~ 300 revs/min, the water of 30L is joined in the water glass of 15L, obtain water glass diluent, then, under the stirring velocity of 300 revs/min ~ 500 revs/min, the massfraction above-mentioned water glass diluent being joined 4L is in the dilution heat of sulfuric acid of 40%, control ph 2 ~ 3, stir 5 minutes, leave standstill 12 hours, obtain polysilicon acid solution, for subsequent use.Under the stirring velocity of 50 revs/min ~ 100 revs/min, the water of 28L is joined in the metatitanic acid waste material of 28kg, form a kind of paste, then be under the stirring velocity of 90 DEG C ~ 100 DEG C and 100 revs/min ~ 200 revs/min in temperature, by the massfraction of 45L be 75% concentrated sulfuric acid solution join in above-mentioned paste, carry out leaching reaction, controlling the reaction times is 2 hours, obtain leaching liquid, low whipping speed is under the condition of 100 revs/min ~ 300 revs/min, the water of 50L is joined in above-mentioned leaching liquid, obtain leaching diluent, filter, obtain filtrate, for subsequent use.Be under the stirring velocity of 30 DEG C ~ 50 DEG C and 100 revs/min ~ 300 revs/min in temperature, above-mentioned polysilicon acid solution is joined in above-mentioned filtrate, stir after 2 minutes ~ 5 minutes, add the sodium chlorate of 3kg, continue stirring 2 minutes ~ 5 minutes, obtain mixed solution, then at room temperature leave standstill slaking, controlling the curing time is 16 hours, obtains the poly-ferro-silico-titanium coagulating agent stoste of water treatment, then 1.5 times ~ 2 times are diluted, the poly-ferro-silico-titanium coagulating agent liquid product of obtained yellowish green water treatment.
Embodiment 4
Under the stirring velocity of 100 revs/min ~ 300 revs/min, the water of 25L is joined in the water glass of 15L, obtain water glass diluent, then, under the stirring velocity of 300 revs/min ~ 500 revs/min, the massfraction above-mentioned water glass diluent being joined 3L is in the dilution heat of sulfuric acid of 45%, control ph 3 ~ 3.5, stir 5 minutes, leave standstill 5 hours, obtain polysilicon acid solution, for subsequent use.Under the stirring velocity of 50 revs/min ~ 100 revs/min, the water of 50L is joined in the metatitanic acid waste material of 50kg, form a kind of paste, then be under the stirring velocity of 90 DEG C ~ 100 DEG C and 100 revs/min ~ 200 revs/min in temperature, by the massfraction of 85L be 80% concentrated sulfuric acid solution join in above-mentioned paste, carry out leaching reaction, controlling the reaction times is 1 hour, obtain leaching liquid, low whipping speed is under the condition of 100 revs/min ~ 300 revs/min, the water of 100L is joined in above-mentioned leaching liquid, obtain leaching diluent, filter, obtain filtrate, for subsequent use.Be under the stirring velocity of 30 DEG C ~ 50 DEG C and 100 revs/min ~ 300 revs/min in temperature, above-mentioned polysilicon acid solution joined in above-mentioned filtrate, stirs after 2 minutes ~ 5 minutes, add the sodium chlorate of 5kg, continue stirring 5 minutes, obtain mixed solution, for subsequent use.Under the stirring velocity of 100 revs/min ~ 300 revs/min, be that the sodium hydroxide solution of 2mol/L joins in above-mentioned mixed solution by the molar fraction of 10L, control ph is 0.5 ~ 2.5, then at room temperature slaking is left standstill, controlling the curing time is 3 hours, obtain the poly-ferro-silico-titanium coagulating agent stoste of water treatment, then dilute 1.5 times ~ 2 times, the poly-ferro-silico-titanium coagulating agent liquid product of obtained yellowish green water treatment.Adopt seasoning method by the poly-ferro-silico-titanium coagulating agent stoste solidification of above-mentioned water treatment, naturally dry, pulverize, make light khaki granular solids product.
Embodiment 5
Under the stirring velocity of 100 revs/min ~ 300 revs/min, the water of 30L is joined in the water glass of 15L, obtain water glass diluent, then, under the stirring velocity of 300 revs/min ~ 500 revs/min, the massfraction above-mentioned water glass diluent being joined 4L is in the dilution heat of sulfuric acid of 40%, control ph 2 ~ 3, stir 5 minutes, leave standstill 12 hours, obtain polysilicon acid solution, for subsequent use.Under the stirring velocity of 50 revs/min ~ 100 revs/min, the water of 28L is joined in the metatitanic acid waste material of 28kg, form a kind of paste, then be under the stirring velocity of 90 DEG C ~ 100 DEG C and 100 revs/min ~ 200 revs/min in temperature, by the massfraction of 45L be 75% concentrated sulfuric acid solution join in above-mentioned paste, carry out leaching reaction, controlling the reaction times is 2 hours, obtain leaching liquid, low whipping speed is under the condition of 100 revs/min ~ 300 revs/min, the water of 50L is joined in above-mentioned leaching liquid, obtain leaching diluent, filter, obtain filtrate, for subsequent use.Be under the stirring velocity of 30 DEG C ~ 50 DEG C and 100 revs/min ~ 300 revs/min in temperature, above-mentioned polysilicon acid solution joined in above-mentioned filtrate, stirs after 2 minutes ~ 5 minutes, add the sodium chlorate of 1kg, continue stirring 2 minutes ~ 5 minutes, obtain mixed solution, for subsequent use.Under the stirring velocity of 100 revs/min ~ 300 revs/min, be that the sodium hydroxide solution of 3mol/L joins in above-mentioned mixed solution by the molar fraction of 3L, control ph is 0.5 ~ 2, then at room temperature slaking is left standstill, controlling the curing time is 16 hours, obtain the poly-ferro-silico-titanium coagulating agent stoste of water treatment, then dilute 1.5 times ~ 2 times, the poly-ferro-silico-titanium coagulating agent liquid product of obtained yellowish green water treatment.Adopt reverse contact spray drying process by the poly-ferro-silico-titanium coagulating agent stoste solidification of above-mentioned water treatment, hot air flowrate is 100m
3/ h ~ 200m
3/ h, hot-air inlets temperature is 100 DEG C ~ 120 DEG C, makes flaxen powdery product.
Embodiment 6
Under the stirring velocity of 100 revs/min ~ 300 revs/min, the water of 30L is joined in the water glass of 15L, obtain water glass diluent, then, under the stirring velocity of 300 revs/min ~ 500 revs/min, the massfraction above-mentioned water glass diluent being joined 4L is in the dilution heat of sulfuric acid of 40%, control ph 2 ~ 3, stir 5 minutes, leave standstill 12 hours, obtain polysilicon acid solution, for subsequent use.Under the stirring velocity of 50 revs/min ~ 100 revs/min, the water of 28L is joined in the metatitanic acid waste material of 28kg, form a kind of paste, then be under the stirring velocity of 90 DEG C ~ 100 DEG C and 100 revs/min ~ 200 revs/min in temperature, by the massfraction of 45L be 75% concentrated sulfuric acid solution join in above-mentioned paste, carry out leaching reaction, controlling the reaction times is 2 hours, obtain leaching liquid, low whipping speed is under the condition of 100 revs/min ~ 300 revs/min, the water of 50L is joined in above-mentioned leaching liquid, obtain leaching diluent, filter, obtain filtrate, for subsequent use.Be under the stirring velocity of 30 DEG C ~ 50 DEG C and 100 revs/min ~ 300 revs/min in temperature, above-mentioned polysilicon acid solution is joined in above-mentioned filtrate, stir after 2 minutes ~ 5 minutes, add the sodium chlorate of 3kg, continue stirring 2 minutes ~ 5 minutes, obtain mixed solution, then at room temperature leave standstill slaking, controlling the curing time is 16 hours, obtains the poly-ferro-silico-titanium coagulating agent stoste of water treatment, then 1.5 times ~ 2 times are diluted, the poly-ferro-silico-titanium coagulating agent liquid product of obtained yellowish green water treatment.Adopt reverse contact spray drying process by the poly-ferro-silico-titanium coagulating agent stoste solidification of above-mentioned water treatment, hot air flowrate is 100m
3/ h ~ 200m
3/ h, hot-air inlets temperature is 100 DEG C, makes flaxen powdery product.
Application example
No.1 prepared by above embodiment 1,2,3,2, the water treatment of 3 low sludge quantities is used for poly-ferro-silico-titanium coagulating agent the coagulating treatment adding kaolinic simulation pesticide water, and contrasts with polymerize aluminum chloride (PAC).Raw water turbidity is 65 ~ 105NTU, and pH value is 5.2 ~ 5.7, COD
crfor 1205-1400mg/L, total phosphorus (TP) is 356 mg/L, and water temperature is 20 DEG C.Dosage is mL medicament/1L water sample.Result lists in table 1 and table 2.
Table 1 dephosphorization efficiency by using (%)
Mud generation (mL) after table 2 sedimentation completes
As can be seen from the above results, the poly-ferro-silico-titanium coagulating agent of water treatment has more excellent phosphorus removal property and has less mud generation.
Claims (4)
1. the poly-ferro-silico-titanium coagulating agent of water treatment of low sludge quantity, is characterized in that:
(1) raw material composition and content, all percentage ratio is weight percentage:
Metatitanic acid waste material 5% ~ 15%
Water glass 4% ~ 11%
Water 30% ~ 60%
Massfraction is the concentrated sulfuric acid solution 25% ~ 40% of 60% ~ 90%
Massfraction is the dilution heat of sulfuric acid 0.08% ~ 2.5% of 30% ~ 50%
Molar fraction is the sodium hydroxide solution 0% ~ 6% of 1mol/L ~ 5mol/L
Additive 0.2% ~ 2.5%
(2) preparation process:
A, under the stirring velocity of 100 revs/min ~ 300 revs/min, the water of 14% ~ 26% is joined in the water glass of 4% ~ 11%, obtain water glass diluent, then, under the stirring velocity of 300 revs/min ~ 500 revs/min, the massfraction above-mentioned water glass diluent being joined 0.08% ~ 2.5% is in the dilution heat of sulfuric acid of 30% ~ 50%, and control ph is 1.5 ~ 3.5, stir 5 minutes ~ 10 minutes, leave standstill 3 hours ~ 16 hours, obtain polysilicon acid solution, for subsequent use;
B, under the stirring velocity of 50 revs/min ~ 100 revs/min, the water of 4% ~ 14% is joined in the metatitanic acid waste material of 5% ~ 15%, form a kind of paste, then be under the stirring velocity of 90 DEG C ~ 100 DEG C and 100 revs/min ~ 200 revs/min in temperature, by the massfraction of 25% ~ 40% be 60% ~ 90% concentrated sulfuric acid solution join in above-mentioned paste, carry out leaching reaction, controlling the reaction times is 1 hour ~ 2 hours, obtain leaching liquid, low whipping speed is under the condition of 100 revs/min ~ 300 revs/min, the water of 12% ~ 20% is joined in above-mentioned leaching liquid, obtain leaching diluent, filter, obtain filtrate, for subsequent use,
C, in temperature be 30 DEG C ~ 50 DEG C and 100 revs/min ~ 300 revs/min stirring velocity under, above-mentioned polysilicon acid solution is joined in above-mentioned filtrate, stirs after 2 minutes ~ 5 minutes, add the oxygenant of 0.2% ~ 2.5%, continue stirring 2 minutes ~ 5 minutes, obtain mixed solution, for subsequent use;
D, under the stirring velocity of 100 revs/min ~ 300 revs/min, be that the sodium hydroxide solution of 1mol/L ~ 5mol/L joins in above-mentioned mixed solution by the molar fraction of 0% ~ 6%, control ph is 0.5 ~ 3.5, then at room temperature slaking is left standstill, controlling the curing time is 3 hours ~ 16 hours, obtain the poly-ferro-silico-titanium coagulating agent stoste of water treatment, then dilute 1.5 times ~ 2 times, obtained yellow-green colour or the poly-ferro-silico-titanium coagulating agent liquid product of khaki water treatment;
E, adopt reverse contact spray drying process or seasoning method by the poly-ferro-silico-titanium coagulating agent stoste solidification of above-mentioned water treatment, in reverse contact spray-drying process, hot air flowrate is 100m
3/ h ~ 200m
3/ h, hot-air inlets temperature is 100 DEG C ~ 120 DEG C, or above-mentioned stoste is naturally dried, pulverized, and makes faint yellow or light khaki Powdered or granular solids product.
2. the poly-ferro-silico-titanium coagulating agent of water treatment of low sludge quantity according to claim 1, it is characterized in that adopted water glass is technical grade liquid, wherein silicon-dioxide quality content is 23% ~ 28%, and modulus is 3.1 ~ 3.4.
3. the water treatment technology of preparing of gathering ferro-silico-titanium coagulating agent of low sludge quantity according to claim 1, it is characterized in that wet type acid cleaning waste slag to produce in sulfate process titanium dioxide production process and water glass are main raw material, with technical grade sulfuric acid, sodium hydroxide for auxiliary material, with technical grade sodium chlorate, clorox for additive, prepare that the less and settling velocity of sludge quantity is fast, the poly-ferro-silico-titanium coagulating agent of the water treatment of depollution performance efficiency.
4. the water treatment technology of preparing of poly-ferro-silico-titanium coagulating agent of low sludge quantity according to claim 1, it is characterized in that technological process is normal pressure, room temperature or low temperature, equipment is simple, and technical maturity, easily realizes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510165764.0A CN104817148A (en) | 2015-04-10 | 2015-04-10 | Poly ferro-silicon-titanium coagulant used for treating low-sludge amount water and preparation technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510165764.0A CN104817148A (en) | 2015-04-10 | 2015-04-10 | Poly ferro-silicon-titanium coagulant used for treating low-sludge amount water and preparation technology thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104817148A true CN104817148A (en) | 2015-08-05 |
Family
ID=53727660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510165764.0A Pending CN104817148A (en) | 2015-04-10 | 2015-04-10 | Poly ferro-silicon-titanium coagulant used for treating low-sludge amount water and preparation technology thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104817148A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105217764A (en) * | 2015-09-10 | 2016-01-06 | 济南大学 | The hydridization water conditioner that a kind of titanium is polymerized with polysaccharide blend and technology of preparing thereof |
| CN108840417A (en) * | 2018-07-06 | 2018-11-20 | 佛山市陵谐环保科技有限公司 | A kind of preparation method of food and drink waste water flocculant |
| CN109574170A (en) * | 2019-01-29 | 2019-04-05 | 中国科学院生态环境研究中心 | Polysilicon acid polyferric sulfate Ti-inorganic polymer composite flocculant, its preparation and application |
| CN112209489A (en) * | 2020-08-25 | 2021-01-12 | 广西博世科环保科技股份有限公司 | Preparation method of high-molecular catalytic water purifying agent for improving Fenton process treatment effect |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003251106A (en) * | 2002-02-28 | 2003-09-09 | Dai Ichi Kogyo Seiyaku Co Ltd | Manufacturing method for granular polymeric flocculant |
| CN101333023A (en) * | 2008-05-07 | 2008-12-31 | 济南大学 | Inorganic oxidability high molecular ferro-silicon coagulant, preparation process thereof and applications |
| CN101525173A (en) * | 2009-03-17 | 2009-09-09 | 济南大学 | Oxygenation and dimethyl diallyl ammonium chloride composite modification silicoferrite coagulating agent and preparation method thereof |
| CN102101711A (en) * | 2010-12-10 | 2011-06-22 | 杭州荣升环保科技有限公司 | Method for preparing metal polysilicate flocculant |
| CN103342406A (en) * | 2013-07-02 | 2013-10-09 | 山东大学 | Polymeric silicic acid-polyferric sulfate titanium inorganic macromolecular composite flocculant and preparation method and application thereof |
| CN104140146A (en) * | 2014-06-24 | 2014-11-12 | 济南大学 | Method for preparing polymerized ferrotitanium water purifying agent by adopting waste metatitanic acid |
| CN104386787A (en) * | 2014-09-10 | 2015-03-04 | 济南大学 | Inorganic ferrotitanium polymeric coagulant with ilmenite as raw material and preparation technology thereof |
-
2015
- 2015-04-10 CN CN201510165764.0A patent/CN104817148A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003251106A (en) * | 2002-02-28 | 2003-09-09 | Dai Ichi Kogyo Seiyaku Co Ltd | Manufacturing method for granular polymeric flocculant |
| CN101333023A (en) * | 2008-05-07 | 2008-12-31 | 济南大学 | Inorganic oxidability high molecular ferro-silicon coagulant, preparation process thereof and applications |
| CN101525173A (en) * | 2009-03-17 | 2009-09-09 | 济南大学 | Oxygenation and dimethyl diallyl ammonium chloride composite modification silicoferrite coagulating agent and preparation method thereof |
| CN102101711A (en) * | 2010-12-10 | 2011-06-22 | 杭州荣升环保科技有限公司 | Method for preparing metal polysilicate flocculant |
| CN103342406A (en) * | 2013-07-02 | 2013-10-09 | 山东大学 | Polymeric silicic acid-polyferric sulfate titanium inorganic macromolecular composite flocculant and preparation method and application thereof |
| CN104140146A (en) * | 2014-06-24 | 2014-11-12 | 济南大学 | Method for preparing polymerized ferrotitanium water purifying agent by adopting waste metatitanic acid |
| CN104386787A (en) * | 2014-09-10 | 2015-03-04 | 济南大学 | Inorganic ferrotitanium polymeric coagulant with ilmenite as raw material and preparation technology thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105217764A (en) * | 2015-09-10 | 2016-01-06 | 济南大学 | The hydridization water conditioner that a kind of titanium is polymerized with polysaccharide blend and technology of preparing thereof |
| CN105217764B (en) * | 2015-09-10 | 2017-06-23 | 济南大学 | Hydridization water treatment agent and its technology of preparing that a kind of titanium is polymerized with polysaccharide blend |
| CN108840417A (en) * | 2018-07-06 | 2018-11-20 | 佛山市陵谐环保科技有限公司 | A kind of preparation method of food and drink waste water flocculant |
| CN109574170A (en) * | 2019-01-29 | 2019-04-05 | 中国科学院生态环境研究中心 | Polysilicon acid polyferric sulfate Ti-inorganic polymer composite flocculant, its preparation and application |
| CN109574170B (en) * | 2019-01-29 | 2021-04-16 | 中国科学院生态环境研究中心 | Polymeric ferric sulfate silicate titanium inorganic polymer composite flocculant, and preparation and application thereof |
| CN112209489A (en) * | 2020-08-25 | 2021-01-12 | 广西博世科环保科技股份有限公司 | Preparation method of high-molecular catalytic water purifying agent for improving Fenton process treatment effect |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104140146B (en) | A kind of method adopting metatitanic acid waste material to prepare polymerization ferrotianium water purification agent | |
| CN104085969B (en) | Spent acid is utilized to produce the method for compound polynary flocculant poly silicic acid chloro sulphuric acid ferro-aluminum | |
| CN104071881A (en) | Flocculating agent for waste water treatment, and preparation method thereof | |
| CN103738992A (en) | Preparation technology of efficient polymeric aluminum chloride for wastewater treatment | |
| CN101759245B (en) | Water purifying agent | |
| CN104817148A (en) | Poly ferro-silicon-titanium coagulant used for treating low-sludge amount water and preparation technology thereof | |
| CN100534917C (en) | Composite emulsion breaking scavenging agnet and preparation method thereof | |
| CN106946438A (en) | The organic composite sludge dehydration conditioner and preparation method prepared using paper mill sludge | |
| CN104016454B (en) | A kind of preparation method of the flocculating settling agent for secondary lead wastewater treatment | |
| CN104724809A (en) | Ternary copolymerization flocculating agent based on natural macromolecules and preparation method for ternary copolymerization flocculating agent | |
| CN105692850A (en) | Preparation technique of banana peel polymer coagulant for water treatment | |
| CN101973589B (en) | Preparation method of polymeric ferric aluminous sulphate by using pyrite wastewater and treatment sludge | |
| CN105084481A (en) | Dyeing wastewater treating agent and preparing method thereof | |
| CN101851054B (en) | Sludge dewatering conditioner, and preparation method and application thereof | |
| CN103435679A (en) | Method for recycling protein from fish soluble | |
| CN105883996B (en) | A kind of modified banana skin coagulant and its preparation process | |
| CN102502883B (en) | Method for recovering iron and producing liquid polymeric ferric sulfate (PFS) from papermaking sludge | |
| CN101525173B (en) | Oxygenation and dimethyl diallyl ammonium chloride composite modification silicoferrite coagulating agent and preparation method thereof | |
| CN102897884A (en) | Composite flocculant as well as preparation method and application thereof on processing printing and dyeing wastewater | |
| CN104828919A (en) | Water treatment agent and preparation method thereof | |
| CN102491474A (en) | Feed raw water treatment flocculating agent and preparation method and application thereof | |
| CN106044819B (en) | A kind of environmentally friendly aluminium polychloride sodium metasilicate Joint Production method | |
| CN106745600A (en) | A kind of bentonite/poly aluminium iron silicate composite flocculating agent, preparation method and applications | |
| CN102557213B (en) | High-zinc composite ferroaluminum denitrified coagulant and preparation process thereof | |
| CN106242081A (en) | A kind of preparation method of organo-mineral complexing biological flocculant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150805 |