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Home Page | Newsletter | Konark – Kubota tie-up for better tomorrow

Konark – Kubota tie-up for better tomorrow

icon-calendarDate: July 29, 2014

Konark Fixtures Ltd., (Industrial Division) has collaboration with Kubota of Japan. With this tie-up we have one more technology

in our basket to offer to market. MBR ( Membrane Bio –

Reactor) is very popular technology in treating the waste water effectively & generate usable water from waste water for Reuse.

The distinct advantages of the MBR process are

1. It is single tank process hence its footprint is less it can be reduced up to 60%.

2. Higher MLSS can be maintained this reduces the Aeration time up to 40% because of this the tank size is reduced proportionately.

3. The treated water coming out of MBR is of Microfiltration quality i.e. 0.4 µm. Which means no suspended solids.

4. No post filtration is required means less power consumption.

5. No back wash is required, more efficient.

6. Life of membrane is 5 years minimum.

With this technology now KFL can offer better solutions to satisfy demands of the clients. We can help the manufacturing units, corporate, city environment clean & reduce the water demands by Recycle / Reuse of the waste water.

The water industry in our country is expected to attract investment of around 50000 crore from indian and foreign companies industry experts says Companies from germany spain france and italy as also from india all looking at the water industry which offers large potential Indian water section is coming of age and with grow in the country decade the poised to grow at 18% 50000 crores investment in water industry will create over one million jobs in the next three years Water industry business will be the right sector in coming years.

How to choose water purifier to home and points to be discussed

Always understanding quality of water is very important like borwell water or municipal water. If borewel water then what is the TDS and hardness? If hardness more than 1300ppm so pre treatment of softner is essential otherwise RO product will get damaged and would require frequent servicing. It is very important to know the regular comsuption of water so that accordingly we can suggest the right capacity of RO model. If it is municipal water and TDS is below 90ppm then UV will be the right solution. Regular checking and servicing increases the life of the water purifier.

Bioremediation of Industrial Effluent Containing Sulfur Dyes

A rapid pace of industrialization coupled with uncontrolled exploitation of nature has resulted in continuous dumping of industrial wastes with hazardous chemicals into the ecosystem. This has resulted in distributing the delicate ecological balance between living and non living components of the biosphere. Water, the most important vital resource for all biota on this planet is adversely affected qualitatively by human activities. Water pollution hence has become a common problem in all areas of the world, in developing and developed countries.

Textile industry represents the second largest industrial sector in India. The textile industry is well known for its high water consumption and complex waste water due to the variety of the additives and finishing processes. This industry involves wide range of raw materials, machineries and processes to engineer the required shape and properties of the final product. Waste generated in the industry is essentially based on various activities of wet processing of textile. The main cause of generating the effluent is the use of huge volume of water either in the actual chemical processing or duringre-processing in preparatory, dyeing, printing and finishing.

 With increasing interest in process water recycling and tighter regulations on the disposal of dye containing waste waters, segregation and separate treatment schemes are becoming important for textile waste waters with high dye concentrations. The major chemical pollutant present on textile are dyes containing carcinogenic amines, toxic heavy metals, pentachlorophenols, chlorine bleaching, halogen carriers, free formaldehyde, biocides and softeners. The effluent of textile industry is highly coloured and disposal of this waste water into environment can be extremely deleterious. Their presence in the watercourses is aesthetically unacceptable and may be visible at concentration as low as 1ppm. 

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Dyes are complex organic molecules which are refractory in aerobic treatment systems. Some contain metals such as chromium, zinc, and 

copper. Direct discharge of such effluents causes formation of toxic aromatic amines under anaerobic conditions in receiving media. Several physico- chemical decolorization techniques have been reported in the past two decades however few have been accepted by the textile industries. Recent fundamental work has revealed the existence of a wide variety of micro oganisms capable of decolorozing an equally wide range of dyes.

A huge amount of various chemicals such as alum, ferric chloride and hydrochloric acid are used by the textile industries for waste treatment which creates a problem of solid waste management and also increases the overall cost of the waste water treatment. Waste water containing dyes is very difficult to treat since the dyes are recalcitrant molecules resistant to aerobic digestion and stable to light. A synthetic dye in waste water can not be efficiently decolorized by traditional methods. Hence there is high cost and disposal problem for treating dye waste water on a large scale in the textile industry.

Chemical methods include coagulation or flocculation combined with flotation and filtration,precipitation-flocculation with ferric or calcium hydroxide, electro flotation, electro kinetic coagulation, conventional oxidation methods by oxidizing agents, irradiation or electrochemical processes. Recently other emerging techniques such as advanced oxidation processes which are based on the generation of very powerful oxidizing agents such as hydroxyl radicals have been applied with success for the pollutant degradation. Although these methods are efficient for treatment, they are costly and commercially unattractive. The high electrical energy demand and consumption of chemical reagents are common problems.

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Physical methods widely used include membrane filtration processes such as nanofiltration, reverse osmosis, electro dialysis and absorption techniques. Limited life span of the membranes is a major disadvantage of the filtration processes. A combination of biological and physico-chemicalmethod is therefore an attractive option for the efficient treatment of effluent.

Synthetic dyes are increasingly used in the textile industry today because of their ease of use, cost effectiveness in synthesis, stability and variety of color as compared to natural dyes. Reactive dyes, commercially a very important class of dyes is becoming more popular in the textile industry. Lower degree of fixation of fabrics with reactive dyes results into loss of dyes (10-15%) in effluents which makes it darker, chemically stable and carcinogenic.

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Effluent from the textile industry is characterized by high values of BOD, COD, TDS, color and an alkaline pH. The high BOD value can cause oxygen depletion if disposed in an untreated form and the high COD values are toxic to aquatic life.

Bioremediation is a sustainable strategy that utilizes the metabolic potential of microoranisms to clean- up contaminated environment. It achieves decomposition of contaminant or immobilization by exploiting the existing metabolic potential of microorganisms with novel catabolic functions derived from selection or by introduction of genes encoding of such functions. The goal of bioremediation is to transform organic pollutants into harmless metabolites or mineralize the pollutants to carbon dioxide and water. Bioremediation techniques are typically more economical than thermal and physico-chemicalremediation such as incineration.

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