CN1059887A

CN1059887A - Disinfectant for purifying water and production technique thereof

Info

Publication number: CN1059887A
Application number: CN 91108202
Authority: CN
Inventors: 何名鸿
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-10-16
Filing date: 1991-10-16
Publication date: 1992-04-01

Abstract

With novel material---high molecular polymerization iron aluminium potassium is flocculation agent, allocate the disinfectant for purifying water that sterilizing agents such as coagulant aidss such as soda and chlorinated lime are made into, its coacervation ability is higher than traditional water purification agents such as alum far away, can not only effectively remove the various suspended substances in trade effluent or the natural sewage, but kill bacteria also, reduce CODcr content and colourity, the pH value also reaches discharging standards.Processing drinking water can reach " very cleaning " standard.Its production technique is to add iron, aluminium and alunite polymerization in the dilute hydrochloric acid, to add iron trichloride and kaolin powder again, to add sodium hydroxide at last, promptly to make high molecular polymerization iron aluminium potassium.Allocate coagulant aids and sterilizing agent after the oven dry into.

Description

Disinfectant for purifying water and production technique thereof

The present invention relates to a kind ofly tap water or trade effluent be carried out coacervation purifies and the water quality cleansing agent of sterilization, relate to its production technique simultaneously.

Traditional water quality cleansing agent is alum [ALK(SO ₄), 12H ₂O], but the silt among its Jiang Jiang, river, lake, pool water with the coacervation effectively of mechanism's suspended substance, precipitation are arranged, and reduce part therefrom and contain bacterium quantity.Along with the raising of people's sanitary standard for drinking water, the effect of alum is not ideal enough, and is especially not enough to the effect of the slight water quality reduction bacterial number of pollution level.The production technique of high molecular polymerization iron aluminium potassium is as follows: technical hydrochloric acid is placed reactor, and thin up becomes 19%～28% diluted acid.Stir and slowly to add metallic aluminium and metallic iron (available medical aluminium powder, iron powder, the aluminium bits of the also available Al80% of containing～90% and contain the iron filings of Fe50%～80%) down, the weight ratio of the two and hydrochloric acid is respectively 64%～90% and 5%～16%.Get baked alunite fine powder simultaneously and add in the reaction solution, add-on is 10%～20% with the ratio of salt amount.After the vigorous reaction calmness, add FeCl ₃The aqueous solution makes its polymerization and in order to adjust reaction solution proportion to Be ^xBetween 15 °～20 °, FeCl wherein ₃Content is 10%～20% of acid amount.Add a small amount of baked kaolin fine powder simultaneously and make its decolouring, add-on can reach 10%～20% of acid amount.Left standstill in the sun two to three days, and reacted fully.Get supernatant liquid and add stablizer Na(OH), promotor K(OH) (with salt amount ratio be 4%～8%), solution form that can about 40% adds.Form stable iron aluminium potassium polymer emulsion after stirring, it is the above inorganic polymer Random copolymer RCP of 5000A, is new efficient flocculation agent.The kind and the quantity of trade effluent constantly increase at present, and is also urgent day by day to the purifying treatment of waste water.Traditional alum coacervation does not reach processing requirements especially.Environment department also wishes to have new medicament to come out.

Task of the present invention provides a kind of new flocculation agent and production technique thereof, its coacervation ability should be higher than far away traditional flocculation agent with the film-making of this novel material prescription after, it both had been suitable for the quick clarification that high muddy water also is applicable to low turbidity water, and the pH value scope that is suitable for water quality treatment is also wanted suitable wide point.It should have sterilizing ability simultaneously, can at short notice the bacterial number in the water be reduced within the grading index that can Gong drink in the national water quality assessment standard.Its production technique should be ripe to suitability for industrialized production degree, practical.Its prices of raw and semifnished materials, kind and productive expense also should have commercial value.

The present invention program is as follows: adopt high molecular polymerization iron, aluminium, potassium [XFeAL(OH) ₃KCL] novel material is main component, add coagulant aids (for example lime, soda or sodium bicarbonate) 10%～15%(lime in the prescription and be only applicable to helping with fixed attention of undrinkable water), adding sterilizing agent (for example Choloro-bromotriisocyanic Acid or chlorinated lime, bleaching essence etc.) simultaneously becomes the purification sterilizing agent jointly.The ratio that the latter adds is 1%～5%.That is: [XF _eAl(OH) ₅KCl] content is 75%～80%, and coagulant aids is 10%～15%, and sterilizing agent is 1%～5%, and other is the mineral powder.

The production technique of high molecular polymerization iron aluminium potassium is as follows: technical hydrochloric acid is placed reactor, and thin up becomes 19%～28% diluted acid.Stir and slowly to add metallic aluminium and metallic iron (available medical aluminium powder, iron powder, the aluminium bits of the also available Al80% of containing～90% and contain the iron filings of Fl50%～90%) down, the weight ratio of the two and hydrochloric acid is respectively 64%～90% and 5%～16%.Get baked alunite fine powder simultaneously and add in the reaction solution, add-on is 10%～20% with the ratio of salt amount.After the vigorous reaction calmness, add FeCl ₃The aqueous solution makes its polymerization and in order to adjust reaction solution proportion to Be ^*Between 15 °～20 °, FeCl wherein ₃Content is 10%～20% of acid amount.Add a small amount of baked kaolin fine powder simultaneously, add-on can reach 10%～20% of acid amount.Left standstill in the sun two to three days, and reacted fully.Get supernatant liquid and add stablizer Na(OH), promotor K(OH) (with salt amount ratio be 4%～8%), solution form that can about 40% adds.Form stable iron aluminium potassium polymkeric substance after stirring, it is the above inorganic polymer Random copolymer RCP of 5000A, is new efficient flocculation agent.High molecular polymerization iron, aluminium, potassium are novel material of the present invention, it can be directly uses as flocculation agent, also can be dried into powder and make the tablet use for prescription.As the present invention, after the oven dry of novel material high molecular polymerization iron aluminium potassium, in the ratio adding coagulant aids of 1/10-1/4, the ratio adding sterilizing agent in 1/10-1/5 promptly becomes finished product purification sterilization sheet again.

The present invention handles industrial sewage can make organic suspension thing SS, B0D5, CODcr, colourity, pH value in the waste water reach discharging standards.To the natural water on river, river, lake, the pool, add this purification emulsion and can make the water quality clarification about 3～5/10000 hours, reach " very cleaning " grade in the national water quality assessment standard.This solid tablet contains the disinfection composition simultaneously, can reduce bacteria containing amount in the water effectively, makes it to reach drinking water standard.This tablet is fit to the needs of rural area, factories and miness, army and field work very much.Production technique of the present invention obtains practical product with raw material cheap and easy to get through tight prescription polyreaction, can satisfy the needs that general industry is produced.

Further specify below in conjunction with embodiment.

Embodiment 1, to get 24% hydrochloric acid be industrial alleged " secondary acid " 400kg, places retort, under fully stirring, divides and slowly add aluminium bits 90kg and iron filings 15kg next time.Get alunite 15kg,, pulverize then, cross 200 mesh sieves, slowly join in the above-mentioned dilute hydrochloric acid and go 500 ℃ of following roastings 2 hours.After the reaction calmness,, use FeCl with baume degree meter solution proportion ₃The aqueous solution is adjusted between its degree Beaume to 15～20, gets kaolin 15kg and pulverizes after 2 hours 700 ℃ of roastings, crosses 200 order dusting covers, evenly is sprinkled in the polymer fluid, leaves standstill more than 6 hours.The supernatant liquid of getting polymer fluid to another container, add then the 7.5kg iron trichloride (when polymer fluid proportion is bigger than normal, the FeCl of available dilution ₃Solution adds).Leave standstill two days three nights in the sun, get supernatant liquid to another reactor.Inject 40%N then _a(OH), K(OH) solution, separate out until adularescent AlCl flocks and to float, need alkali lye 15kg approximately.Leave standstill, after dissolving again to AlCl, remove slag (needing 2 hours approximately) 60 ℃ of oven dry down, making water content reduce to 2%～10% becomes novel material polymer iron aluminium potassium pulvis with this emulsion again.At this moment add coagulant aids Na ₃CO ₃, add-on is 20% of a flocculation agent weight.Again by 20% of gross weight add disinfected-decolorized dose of Choloro-bromotriisocyanic Acid at last routinely technology make tablet.

Embodiment 2, get 19% hydrochloric acid 400kg, slowly add Al powder 80kg and Fe powder 10kg, baked alunite 10kg.Adjust proportion to 15 degree Beaume after the polymerization.Add baked kaolin fine powder 10kg, left standstill 4 hours, remove slag.Inject FeCl ₃Solution (contains FeCl ₃5kg).After leaving standstill 50～70 hours, add 40% caustic soda 10kg, remove slag after leaving standstill, then oven dry.Promptly become water purification agent by 10: 1 behind the adding lime powder, made tablet by 10: 1 behind the adding chlorinated lime again.It feeds intake this water purifying and disinfection agent such as processing drinking water and need meet the edible chemical industry hygienic standard of country, and the more last embodiment of preservation period is short.

Embodiment 3, get 28% hydrochloric acid 400kg, slowly add aluminium bits 100kg, iron filings 20kg, baked alunite 20kg.After the polymerization, adjust between proportion to 15～20, add baked kaolin fine powder 20kg.Simultaneously, add iron trichloride 10kg.Behind the sufficient standing, add 40% white liquor 20kg.The oven dry back adds sodium bicarbonate by 4: 1 weight ratios, again by 10: 1 smart purification sterilizing agents that promptly become tap water of adding bleaching.

Smart do (sterilizing agent) of embodiment 2,3, adding chlorinated lime or bleaching, its preservation period is shorter, also can change sterilizing agent into Choloro-bromotriisocyanic Acid.

Claims

1, a kind of disinfectant for purifying water is characterized in that containing in the composition 55%～80% high molecular polymerization iron, aluminium, potassium [XFeAl (OH) ₃KCl], 10～20 coagulant aids and 10%～20% sterilizing agent, coagulant aids are lime or soda or sodium bicarbonate, sterilizing agent is chlorinated lime, bleaching essence or Choloro-bromotriisocyanic Acid.

2, a kind of production technique of disinfectant for purifying water, it is characterized in that technical process is as follows: select for use 19%～28% dilute hydrochloric acid to place reactor, stir the slow down metallic aluminium of acid amount 64%～90% and 5%～16% the metallic iron of adding, the roasting alunite fine powder that adds acid amount 10%～20% simultaneously, after polymerization finishes, the FeCl of acid amount 10%～20% will be accounted for ₃Add with the solution form, adjust proportion to Be15～20, leave standstill, the baked kaolin that adds hydrochloric acid content 10%～20% adds acid and measures 1/20 40%Na(OH) solution, leave standstill the back oven dry of removing slag, then in 10: 1～4: 1 the ratio coagulant aids that is mixed, in 10: 1～5: 1 the ratio sterilizing agent that is mixed, can obtain finished product again, finished product can be pulvis or tablet.