Presently conventional coagulants (i.e. salts of Aluminium or Iron) are used to precipitate dissolved solids and also to settle suspended matter in many effluent treatment plants. These pose problems of carry over finely divided flocs of aluminum hydroxide or ferric hydroxide into the clarified water and produce bulky sludge having a high water content. This increases the sludge handling and disposal costs.
Due to drop in pH on use of these coagulants, often further chemicals are needed to counter the effect.
Rishlyte range of coagulants for industrial waste water treatment consists of 'nontoxic' cationic polymers which replace inorganic coagulants (viz Alum, PAC, Lime, Ferric salts) and also reduce cost of treatment.
Numerous other benefits include -
a) Reduction in sludge volume and desludge frequency.
b) Reduced sulphate/ chlorides in the treated effluent and negligible drop in pH of treated water.
c) Reduction in corrosion in coagulant addition pipeline and pump.
d) Automated dosing & controlling of suspended in plants is possible with Rishabh's coagulants
e) Savings in labour and electricity costs
Rishlyte 8005 series is used to decolourise effluents containing anionic, direct or reactive dyes. It is a liquid product, therefore easy to handle and is suitable for use in dyehouses and in municipal biological sewage treatment plants. It is Compatible with the usual inorganic and organic precipitants.
The amount required is 0.1-1 ml/L Rishlyte 8005, depending on the amount of unfixed dyestuff and the desired degree of decoloration. In the case of unfixed direct dyestuffs, smaller amounts are required. The degree of decoloration is determined by measurement of extinction.
Combination with other organic flocculation auxiliaries (e.g. polyacrylamides) and inorganic salts (e.g. iron salts) is possible. However, these products have hardly any effect on the flocculation of reactive dyestuffs.
Rishlyte 9231 and 9232 are also used to remove colour from industrial effluents and function as good precipitating coagulants.
Rishfloc Range of flocculants consists of polymers & copolymers of Acrylamide. These are water soluble polyelectrolytes and have very high molecular weights. The range includes Anionic, Nonionic and Cationic polymers in powder, emulsion as well as in solution form.
Flocculation is the agglomeration of tiny particles into large units. It therefore, finds application in many different industries and helps in achieving clear supernatant, results in fast settling and increases capacity of clarifiers and clariflocculators apart from noticeable cost reduction.
Rishfloc Range of flocculants consists of polymers & copolymers of Acrylamide. These are water soluble polyelectrolytes and have very high molecular weights. The range includes Anionic, Nonionic and Cationic polymers in powder, emulsion as well as in solution form.
Flocculation is the agglomeration of tiny particles into large units.
These products find use in filtration applications in drum filters, vacuum filters, belt presses, and other most commonly used industrial filters. Due to good floc formation on use of Rishfloc flocculants, it is possible to get clear filtrate, increased solid content in cake and also increased throughput and efficiency of equipment.
Rishfloc Range of flocculants consists of polymers & copolymers of Acrylamide. These are water soluble polyelectrolytes and have very high molecular weights. The range includes Anionic, Nonionic and Cationic polymers in powder, emulsion as well as in solution form.
Flocculation is the agglomeration of tiny particles into large units.
These products find use in dewatering applications in centrifuges, decanters, etc. Due to good floc formation on use of Rishfloc flocculants, it is possible to get clear centrate, increased solid content in cake and also increased throughput and efficiency of the equipment.
This range consists of wax based, mineral oil based, vegetable oil based and Silicone oil based defoamers. These have been developed with a view to reduce surface tension at the liquid to air surface and thus reduce or eliminate foam. The quantity of Defoamer to be used would depend on the quality of foam, pH of the medium etc., and would have to be determined by laboratory test.
Foam in particular type of effluents often causes disturbances making it difficult for smooth and clean operations of the treatment plant. Rishabh's defoamers ensure smooth and clean effluent treatment plant operation at low cost.
Emulsions may be broken by chemical, electrolytic or physical methods. In breaking emulsions the stabilizing factors must be neutralized to allow the emulsified droplets to coalesce. The accumulated electric charges on the emulsified oil droplets are neutralized by introducing a charge opposite to that of droplet. Chemical emulsion breakers/ deoilers provide this opposite charge for neutralization.
Organic deoilers developed by Rishabh are extremely effective emulsion breaking agents, giving more consistent results and produce a better effluent quality than inorganic coagulants or other commercially available deoilers.