Rita S. Dhodapkar

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This paper addresses the treatment of purified terephthalic acid (PTA) effluent using anaerobic and aerobic processes. Laboratory studies were carried out on flow proportionate composite wastewater generated from the manufacturing of PTA. An activated sludge process (ASP-two stage and single stage) and an upflow anaerobic fixed film fixed bed reactor(More)
This paper reports the preparation of gallic acid (GA) molecularly imprinted polymers (MIPs) by the precipitation polymerisation and highlights the effect of porogen on particle size and specific molecular recognition properties. MIP, M-100 prepared in the porogen acetonitrile and MIP, M-75 prepared in a mixture of acetonitrile-toluene (75:25 v/v), resulted(More)
Studies were carried out to remove basic dyes such as safranine T, methylene blue, crystal violet, light green, brilliant milling violet and patent blue VS from their aqueous solutions using biodegradable polymeric absorbent material, viz., Jalshakti (JS). Results showed that 93% safranine T, 98% methylene blue and 84% crystal violet were adsorbed on JS(More)
The present study reports a precise and simple offline solid-phase extraction (SPE) coupled with reversed-phase high-performance liquid chromatography (RP-HPLC) method for the simultaneous determination of five representative and commonly present pharmaceuticals and personal care products (PPCPs), a new class of emerging pollutants in the aquatic(More)
Environmental concerns associated with textile processing had placed the textile sector in a Southern State of India under serious threat of survival. The textile industries were closed under the orders of the Statutory Board for reason of inadequate compliance to environmental discharge norms of the State for the protection of the drinking water source of(More)
The present manuscript deals with the application of carbon nano particles (CNP) and chitosan (CHIT) in the form of CHIT-CNP composite for the disinfection of water. The CHIT-CNP composite was prepared by the solution casting method and characterized by TEM, XRD and elemental analysis. In the present investigation we study the disinfection efficiency(More)
Two commercial reactive azo dyes--Reactive Black 5 (RB5) and Reactive Orange 16 (RO 16) have been treated by titanium dioxide and Zinc oxide photocatalysts separately under presence of sunlight. It is observed that solar photocatalytic treatment is effective in terms of colour and COD. The photodegradation efficiency of zinc oxide is comparable with TiO2 at(More)
Studies on bench scale reactor were undertaken to determine its performance at various organic loading rate (OLR) and hydraulic retention time (HRT). The results indicated BOD and COD removals in the range of 67.2-77.4% and 57.8-69.1% respectively at the OLRs between 0.84 and 2.5 kgCOD/m3 d and HRT of 10 days. Daily gas production was measured by gas flow(More)
Gallic acid (GA) is important for pharmaceutical industries as an antioxidant. It also finds use in tanning, ink dyes and manufacturing of paper. Molecularly imprinted polymers (MIP), which are tailor made materials, can play an excellent role in separation of GA from complex matrices. Molecular recognition being the most important property of MIP, the(More)