NOPR Collection:

Prevention of Malaria Through Homoeopathy

2002-03-01T00:00:00Z

Title: Prevention of Malaria Through Homoeopathy Authors: Chatterjee, S N; Das, S Abstract: In homoeopathy there is no specific medicine (called remedy) to prevent a disease. But, it provides for proper functioning of the immune system of a person against diseases through constitutional or miasmatic treatment. Of course, hygiene, socio-economic conditions must be congenial to health. The study was limited to the prevention of malaria and the work is going on in the clinic and a nearby village. Data, including pathological evidence has been presented. The work was carried out in three groups of people, viz. non-suffered, suffered, and those treated under allopathy or homoeopathy systems. The results present showed that, the prevention of malaria through homoeopathy is full of possibilities. Page(s): 237-238

Studies on Kraft and Kraft-AQ Pulping and Bleaching of Populus Deltoides

2002-03-01T00:00:00Z

Title: Studies on Kraft and Kraft-AQ Pulping and Bleaching of Populus Deltoides Authors: Rao, Suhail Akhtar; Upadhyaya, J S Abstract: Kraft pulping process is the most dominant process used in paper industry. Extending delignification to a low kappa number is possible with the use of anthraquinone (AQ). The additions of AQ (0.1 per cent) results in a substantial increase in pulp yield and strength properties along with substantial decrease in kappa number. The present study deals with the kraft and kraft AQ pulping of Populus deltoides at various alkali doses, sulphidity and AQ doses. It has been found that anthraquinone (AQ) has a beneficial effect on both pulp yield and strength properties. Further kraft and kraft-AQ pulps were bleached with various conventional and nonconventional bleaching sequences including CEHH. OCEHED, OCEDED, and OCEDED to produce bleached pulp with ultra high brightness levels. Page(s): 231-236

Semiconductor Assisted Photodegradation of Textile Dye

2002-03-01T00:00:00Z

Title: Semiconductor Assisted Photodegradation of Textile Dye Authors: Neppolian, B; Shankar, M V; Murugesan, V Abstract: The degradation of commonly used textile dye reactive red 2 in an aqueous solution by means of photocatalysis using ZnO in the form of slurry is studied. The influence of initial concentration of the dye, pH of the reaction mixture. Catalyst loading, the presence of oxygen, hydrogen peroxide, and potassium persulphate on the degradation rate is observed. When concentration of the dye increases from 60 to 140 ppm, the rate constants vary between 0.055 and 0.019 min^-1. The disappearance of the dye follows approximately pseudo-first order kinetics. For an irradiation time of 60 min, 86 per cent COD reduction is noted, whereas 100 per cent degradation observed at 300min of irradiation time. The oxidising agents (oxygen, hydrogen peroxide and potassium persulphate) enhance the degradation rate of the dye. Carbonate ions present in dye solution inhibit the degradation rate of the dye. This method suggests the possible use of ZnO photocatalysed degradation of textile dye present in wastewater. Page(s): 224-230

An Approach Towards the Development of Environmental Quality Index for Evaluation and Categorization of Environmental Impacts

2002-03-01T00:00:00Z

Title: An Approach Towards the Development of Environmental Quality Index for Evaluation and Categorization of Environmental Impacts Authors: Sundararajan, M; Loveson, V J Abstract: During systematic analysis of environmental data, Quality Index (QI) and Quality Matrix (QM) studies have proved to be much useful techniques. An attempt has been made to develop an approach for the evaluation of environmental data through index analysis. Based on the sensitivity function evaluation and derivation of Impact Index and Quality Index related to individual parameters of the various components, Integrated Quality Index (IQI) has been derived. Further. IQI for various environmental components have been carried over to matrix analysis to have over all visualization in the form of Environmental Quality Matrix (EQM). The results can be easily evaluated using defined Environmental Quality Index Classitication System (EQICS). Page(s): 219-223