NOPR Collection:

Pilot Scale Debittering of Kinnow Juice Using Adsorbent Amberlite XAD-16

Thu, 01 Nov 2001 00:00:00 GMT

Title: Pilot Scale Debittering of Kinnow Juice Using Adsorbent Amberlite XAD-16 Authors: Kaushal, B B Lal; Thakur, N K Abstract: Use of adsorbent Amberlite XAD-16 packed in glass column was standardized to debitter the kinnow juice. The XAD-16 was regenerated after each lot by washing with 2.0 per cent sodium hydroxide solution. The reduction in limonin and naringin contents in the first lot (0-10L) was to an extent of 98.3 and 88.5 per cent, respectively, which decreased with its repeated use and the reduction of limonin and naringin in the eighth lot (70-80L) of serum was 68.2 and 17.7 per cent, respectively. The debittered serum was then reconstituted and the juice having 15 per cent pulp, 0.015 per cent orange essence blended to 16^oB TSS was prepared. Page(s): 896-899

Studies for Detection of Micro-crack Defects in Cultural Artifacts Using Holographic Non-destructive Testing Methods

Thu, 01 Nov 2001 00:00:00 GMT

Title: Studies for Detection of Micro-crack Defects in Cultural Artifacts Using Holographic Non-destructive Testing Methods Authors: Kaura, Sushil K; Chhachhia, D P; Aggarwal, A K Abstract: Non-destructive testing methods based on different hologram interferometric techniques have achieved a great importance for different research and industrial applications. Hologram interferometric (HI) techniques can be used wherever the presence of a structural weakness results in localized deformation of the surface when the specimen is stressed, either by the application of a load or by a change in pressure or temperature. On account of the high measuring accuracy of these techniques, they offer a unique application for non-destructive diagnosis of incipient faults or critical damages in precious and ancient artifacts, paintings, sculptures, and monuments caused due to environment effects and aging. Non-destructive testing methods based on different HI techniques; such as double-exposure, real-time, and sandwich HI have been investigated for detection of micro-crack defects in cultural artifacts. Experimental results achieved for micro-crack detection studies on different types of artifacts are discussed. Page(s): 890-895

Assessment of Effective Design of Tailing Pond for Safe Disposal of Iron Ore Tailings

Thu, 01 Nov 2001 00:00:00 GMT

Title: Assessment of Effective Design of Tailing Pond for Safe Disposal of Iron Ore Tailings Authors: Ghose, M K; Sen, P K Abstract: The management of tailings upholds the principle of economic development. Tailing ponds for the containment of iron ore tailings is an important issue, not only from the point of view of pollution control but also from the conservation of resources for the future. But due to huge cost of land and safety of the dam, it is worth designing an appropriate tailing pond size to a minimum level. The purpose of iron ore beneficiation and the cause of surface water pollution and ground water contamination are described. Physico-chemical characteristics of the tailings of an iron ore beneficiation plant and the effectiveness of tailing pond for the removal of toxic pollutants are discussed. To carry out the effective design of tailing pond, settling characteristics of tailings were carried out. The results reveal that the optimum area required for the containment of the tailings should be much less, in comparison to the area utilized for the tailing pond. Page(s): 883-889

Water Soluble Binder System from Malenized Argemone Oil

Thu, 01 Nov 2001 00:00:00 GMT

Title: Water Soluble Binder System from Malenized Argemone Oil Authors: Parmar, R J; Toliwal, S D; Khotpal, R R Abstract: Argemone oil has been malenized at 210^oC using five different mole ratios of oil and maleic anhydride till desirable acid value of the resultant product is achieved. The malenized products have been neutralized with trilethyl amineto make them water compatible. These water compatible products are blended with hexamethoxy methyl melamine (HMMM) in different ratios to prepare water based stoving compositions. Certain compositions are found to have camparable performance to that of the conventional water based alkyd-HMMM compositions when they are tested for their film and other properties. Page(s): 876-882