CN1088890A - Process for deodorizing and decolourizing contaminated water by disturbing with clay - Google Patents

Abstract

The polluted water disturbance clay deodorizing decolouring facture that eliminates the unusual smell belongs to the technical field of Water and Waste Water Engineering.Main contaminated solution water is smelly, peculiar smell and look are removed problem.Main points are clay is carried out disturbance treatment, change the grogs structure and the performance of clay, make it have good adsorption and exchange features.Disturbance clay after disturbance treatment and polluted water thorough mixing fully contact and adsorb exchange the material that produces the look stink and wait reaction, and afterwards the adding flocculation agent carries out coagulation, precipitation, filtration treatment, can reach the eliminate the unusual smell purpose of decolouring of deodorizing.Being mainly used in the waterworks handles for water treatment and industrial sewage.

Description

Process for deodorizing and decolourizing contaminated water by disturbing with clay

The present invention relates to the method that a kind of effective and cheap polluted water disturbance clay deodorizing eliminates the unusual smell and decolours and handle.It particularly is the waterworks at water source with surface water such as rivers and lakes, after the water source is subjected to severe contamination, doubt sedimentation and filtration and disinfect finely to separate deodorizing and flavor and colourity the time through general mixing, use the method for the invention, can more easily make smelly and flavor and colourity reach the tap water national standard.In addition, industrial sewage also can use present method, and look and stink are well removed.The invention belongs to the technical field of Water and Waste Water Engineering, understand, explore, examine the present invention, can consult technical literature and monographs such as " water supply engineering ", " drainage system ", " Chinese water supply and drainage ", " water treatment ".

The look of polluted water, stink are removed problem, generally acknowledge at present effect preferable chlorine, ozone, dioxide peroxide oxidation style and active carbon adsorption etc. are arranged.But, for oxidation style such problem is arranged, when water during by look, smelly, flavor material severe contamination, dosage can not be dealt with problems at least, and dosage greatly then cost is too high, even has dosage can not deal with problems greatly, as smelly and peculiar smell.Facility investment is big especially for active carbon adsorption, the working cost height.The Shen water JS-05 type household water filter of Shanghai Water-saving Eqipment General Factory, Tap Water Co.'s development, in working instructions, write like this: " JS-05 type stainless steel household water filter selects for use domestic water purification active carbon preferably to make water filtration media; can remove chemical foreign odor, peculiar smell in the tap water effectively; organism is had the good adsorption performance; through the water of purifying treatment; transparent clear, drinks the alcohol mouth, and is good for health ".As seen, allow Running-water Company with gac water be carried out the deodorizing processing that eliminates the unusual smell, economic pressures are big.Be exactly the resident of above-mentioned water purifier, also just cook, usefulness when heating up water, scrub and be reluctant to usefulness.Above-mentioned water purifier is still developed by foreign modern technique.Even if as seen the Running-water Company of developed country also faces same problem.The enterprise of the serious look stink of many generations industrial sewage, sewage is treated and discharge, and except that other factors, lacks cost-effective method yet.For example, many paper mills are arranged, sewage is not added to handle enter water body, make to pollute to be on the rise, measure that water intake engineering is moved toward upper reaches is just taked in some waterworkss, to alleviate the processing burden.As Shanghai Running-water Company.Some unable maybe can not on pipette the waterworks of water conservancy project journey, when water pollution was serious, look, smelly, the flavor phenomenon that exceeds standard often appearred in output water.The household water filter of dress gac is exactly that tap water often has foreign odor both at home and abroad, the product of peculiar smell.From the beginning water colour, smelly, the flavor exceed standard, influence people's lives and process water quality.Form vicious cycle, so saying of water resources crisis arranged.

The method that the objective of the invention is to provide the deodorizing of a kind of polluted water disturbance clay, eliminates the unusual smell, decolours and handle, it not only has peculiar deodorizing eliminate the unusual smell effect and decoloration performance preferably, and the water treatment expense is very cheap.

The present invention realizes by following technical process: get free of contamination original state clay or natural clay (yellow, white, red, all can deceive), be modulated into the mud oar with adding water after the artificial or mechanical method pulverizing, the amount of determining by test is added in the pending water then, carries out the disturbance treatment of waterpower and machinery and makes it to mix fully with water.Clay particle after the disturbance treatment just with water in look, stink pollutent fully contact, it is carried out absorption reaction.Add flocculation agent (as aluminium chlorohydroxide etc.) again and carry out coagulation, precipitation, filtration treatment, the smelly and peculiar smell of polluted water just disappears.Colourity can drop to below 15 degree simultaneously, and the time of the consumption of clay, disturbance, mixing and absorption reaction, the add-on of flocculation agent is determined by test.

Main points of the present invention are being carried out disturbance treatment to clay, change the grogs structure and the performance of clay, and the clay after the disturbance treatment just obtains and has good adsorption and a commutativity.

Mineralogical composition according to soil is classified, and clay belongs to insoluble clay mineral class in the secondary mineral.Clay mineral can be divided into three groups again: the kaolin group; Illite clay (hydromica) group; Polynite group (little product kaolin) group.Distribute from the area, most of geographic red, white, yellow, the smolmitza of China based on clay mineral, all can be taken, and generally can gather materials on the spot.

Clay is as the coagulant aids of water treatment coagulating sedimentation, and atlapulgite and diatomite are all known for people already as the sorbent material of sewage disposal and used.Be exactly that the clay micelle has absorption and switching performance, also in polluted water land is handled, be familiar with by people.But clay is carried out disturbance treatment, and improving the absorption and the switching performance of clay particle, special utilization comes polluted water carried out that deodorizing eliminates the unusual smell and the processing of decolouring, and find its deodorizing and the effect spy that eliminates the unusual smell good, decolorizing effect is good, but is unprecedented.

The concrete application method of invention is provided by following embodiment and accompanying drawing.

Fig. 1 is the polluted river water disturbance clay deodorizing that proposes according to the present invention decolouring facture schema that eliminates the unusual smell.

Describe the device specifics and the works situation of the concrete grammar that proposes according to the present invention in detail below in conjunction with Fig. 1.

Comprise pulverizer [1] in this method flow diagram, system mud oarage [2], water intaking pump [3], coagulation basin [4], settling tank [5], filtering basin [6], polluted river water [7], industrial sewage [8].

Along the direction of arrow in the figure,, pulverize in the pulverizer of packing into [1], send into slurry preparation case [2] Zhong Jiashui then and be modulated into mud free of contamination original state clay or natural clay.Through the negative pressure of the water absorption tube of water pump [3] mud in the mud pit and polluted river water [7] are sucked water pump together and carry out powerful disturbance treatment, the polluted river water that disturbance clay and water pump suck mixes in the pipeline that is sent to coagulation basin [4] fully, and to the material that polluted water produces smell and colourity fully contact and adsorb, reaction such as exchange.The back adds flocculation agent (aluminium chlorohydroxide or other flocculation agent all can) in entering the preceding pipeline of coagulation basin [4], enter coagulation basin [4] again, settling tank [5], and filtering basin [6] can reach deodorizing, the purpose that eliminates the unusual smell, decolours.Filter back water is chlorination again, becomes the tap water up to standard that is sent to the user.

Flow process with Fig. 1 also can be handled industrial sewage.During application the sewage of factory [8] being replaced the inlet that polluted river water [7] is incorporated into water pump [3] gets final product.Other working method gives water treatment process identical with the river of handling pollution.

By embodiment as can be seen, the present invention implements in waterworks and industrial sewage station, needn't change greatly original water treatment process, only needs to install pulverizer [1] additional before the water intaking pump, and system mud equipment [2] gets final product.Invest little, this and realize easily.

Claims (2)

1, the polluted water disturbance clay deodorizing decolouring facture that eliminates the unusual smell, this method realizes by a technical process, it is characterized in that.

A, get clay and pulverize, carry out disturbance treatment again and make it and the water thorough mixing look, smelly, the reactions such as pollutent adsorbs, exchange of distinguishing the flavor of in disturbance clay and the water.

B, add flocculation agent (aluminium chlorohydroxide or other flocculation agent all can) again and carry out coagulation, precipitation, filtration treatment.

2, according to claim 1, implement in waterworks and plant effuent station, needn't do big change to former flow process, as long as before the water intaking pump, carry out the broken and slurrying of clay powder.

Images