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Journal of Scientific & Industrial Research

 

ISSN: 0022-4456

CODEN: JSIRAC (63) (5)  (2004)

VOLUME 63

NUMBER 5

MAY 2004

 

CONTENTS

Papers

405

Electrochemical treatment of effluents from textile and dyeing industries




 

 

 

 

 

 

 

 

 

Rajeev Jain, Nidhi Sharma & Meenakshi Bhargava

Reports the results of an efficient electrochemical removal of colour and reduction in toxicity of textile industry effluents. The electrochemical behaviour is analyzed and assessed in terms of removal of colour, decrease in absorbance, time taken to completely remove colour from the dye solution, decrease in chemical oxidation demand, total dissolved solids and disappearance of any reduction peak in colourless solution, thereby indicating the absence of electrochemically active break down product.

IPC Code: Int. Cl.7 : C  02  F  1/46

 

 

410

Adsorption of cadmium (II) ions from aqueous solution using different adsorbents





 

 

 

 

 

 

 

 

 

 

 

 

 

Ajay Kumar Meena, G K Mishra, Satish Kumar, Chitra Rajagopal & P N Nagar

A comparative study on the adsorption of cadmium from aqueous solutions on a few low cost and locally untreated and chemically treated adsorbents is carried out. Mustard husk, carbon aerogel and treated GAC are found to be most effective adsorbents in addition to treated GAC for the removal of cadmium from the aqueous solution at varying process parameters. The adsorption parameters are determined using both Langmuir and Freundlich isotherm models. The results of the experimental studies and the model are presented.

IPC Code: Int. Cl.7 : C  23  C  22/05

 

 

 

417

Jute caddies — A potential raw material for hand-made paper



P K Ganguly, S K Bhaduri & A Day

The steps involved in converting caddies into hand-made paper by an easily  adaptable process are outlined and the physical and mechanical properties of hand-made paper are evaluated The hand-made paper is suitable for making eco-friendly paper bags for grocery and shopping which could largely replace the non-biodegradable plastic (LDPE) carry-bags, a cause of ecological and environmental pollution in our habitat.

IPC Code: Int. Cl.7 : D  21  B 1/00

420

Development of specialty paper is an art: Titanium dioxide loaded poster from indigenous raw materials — Part X

Dharm Dutt, C H Tyagi, R S Malik &
J S Upadhyaya

Present study aims at manufacturing of TDL poster from locally available hardwoods like, Eucalyptus treticornis with some proportion of Dendrocalamus strictus and saw mill waste of Pinus roxumberghi. These raw materials are mostly utilized in India in different proportions. The results of laboratory made TDL poster are very promising and interesting. The converted paper serves the purpose of end users.

IPC Code: Int. Cl.7 : D  21  H 27/00

425

Development of specialty paper is an art: Dark brown Turkish umber (DBTU) from indigenous raw materials — Part XI
 

Dharm Dutt, A K Ray, C H Tyagi & Vikram Singh

The present paper aims at developing DBTU paper from locally available hardwoods like, Eucalyptus tereticornis and Populus deltoides and grass like Bambusa aurandacea from Assam origin.

IPC Code: Int. Cl.7 : D 21  H  27/00

429

Lysimetric approach for ground water pollution control from pulp and paper mill effluent using different soil textures
























A Kumar, V Singhal, B D Joshi & J P N Rai

Century Pulp and Paper Mill effluent while flowing, percolates through soil and slowly mixes with ground water. This results into ground water pollution by increase in various physico-chemical characteristics viz., pH, EC, BOD, COD, TS, TDS, Na, K, Ca, Mg, Lignin, and SAR of ground water. Chemical precipitation, lagooning, activated sludge, and anaerobic treatments are the common treatment processes for pulp and paper mill effluent. These all are costly processes for an industry to adopt and run. An economically feasible and environment-friendly natural method of effluent treatment, i.e. lysimetric/land treatment is suggested.

IPC Code: Int. Cl.7 : C  02  F  1/00

 

 

439

Secretion of a-L-rhamnosidase by some indigenous fungal strains
























Sarita Yadav & K D S Yadav

Secretion of a-L-rhamnosidase by Aspergillus fumigatus MTCC-3376, Aspergillus flavipus MTCC-4644, Aspergillus ochraceus MTCC-4643, Aspergillus terreus MTCC-3375, Aspergillus terreus MTCC-3566, and Aspergillus foetidus MTCC-508 in the liquid culture medium are reported. The enzymatic characteristics of a-L-rhamnosidases like, Kmfor naringin, pH, and temperature optima are determined.

IPC Code: Int. Cl.7 : C  12  P  07/66

 

 

 

444

Effect of temperature and removal of amino acids on non-enzymatic browning of lemon juice concentrates during storage
















S K Sharma, B B Lal Kausha & P C Sharma

The changes in various quality characteristics of concentrates stored at refrigerated temperatures are lesser as compared to those stored at ambient temperatures. Further the retention of quality attributes is better in concentrates of 45 and 60°B than in the concentrate of 71°B.

IPC Code: Int. Cl.7 : A  23  B  7/154

 

 

 

 

 

452

Effect of drying methods on rehydration kinetics of potato slices




















U Ghosh & H Gangopadhyay

The effect of drying methods on rehydration kinetics of potato slices is investigated at (10, 35, 60°C), respectively. The effective diffusion coefficients for water and solute are determined, assuming the rehydration process to be governed by fickian diffusion and the apparent moisture (Dew) and solute (Des) diffusion coefficients are calculated. The effect of temperature on dew, can be interpreted according to Arrhenius law.

IPC Code: Int. Cl.7 : A  23 L 1/216, C  02  F  9/14

 

 

458

An optimal sequencing approach for job-shop production

















J Srinivas, K V Subbaiah & K V V Chandra Maouli

The paper proposes a methodology to determine the best possible changeover sequence for a set of products produced on common facilities. In manufacturing firms, the set up time plays a key role in changing one model to another and should be minimized. The proposed approach formulates the scheduling problem as a Travelling Salesperson Problem (TSP) and solves it through a novel lexicographic search approach. A case study of a leading piston manufacturing company explains the methodology.

 

Note

462

Respiratory tract contamination with selected toxic elements in a slag based cement plant environment in central India — A need of global concern

Rajnikant Sharma & Shamsh Pervez

Describes estimations of selected toxic metals (Pb, Cr, Cd, Co, Ni, Mn and Zn) in a total of 92 samples of respiratory tract washout obtained from diagnosed cases of respiratory ailments in a slag based cement plant environment in central India. Bronchial washout samples are collected from the workers and non-workers of the plant and analyzed for Mn, Pb, Cr, Ni, Zn, Co, and Cd using Atomic Absorption Spectrophotometer.

IPC Code: Int. Cl.7 : C  04  B  7/100

Conference Report

466

The Indian Chemical Engineering Congress – 2003

Sanjay Sengupta

 

Book Review

470

·         The dynamics of technology: Creation and diffusion of skills and knowledge

Reviewer: Pradosh Nath

Sci-Tech Update

472

·         Tiny reactors developed

 

·         Potential device applications for silicon nanowires and carbon nanotubes

 

·         Chemical imager reveals ‘invisible’ fingerprints

 

·         Novel atomic force microscopy for etching

 

·         Superconductivity to assist archaeology

 

·         Ultra fast probing microscope developed

 

·         Molecules without electrons

 

·         Are the fundamental constants truly constants?

 

·         New type of nanotube made of gold or silver created

477

Additions and Corrections

 

Author Index

 

Bhaduri S K

Kumar Satish

Sharma P C

Bhargava Meenakshi

Malik R S

Sharma Rajnikant

Day A

Meena Ajay Kumar

Sharma S K

Dutt Dharm

Mishra G K

Singh Vikram

Dutt Dharm

Mouli Chandra K V V

Singhal V

Gangopadhyay H

Nagar P N

Srinivas J

Ganguly P K

Pervej Shamsh

Subbaiah K V

Ghosh U

Rai J P N

Tyagi C H

Jain Rajeev

Rajagopal Chitra

Tyagi C H

Joshi B D

Ray A K

Upadhyaya J S

Kaushal B B Lal

Sengupta Sanjay

Yadav K D S

Kumar A

Sharma Nidhi

Yadav Sarita

 

Keyword Index

 

Aspergillus terreus

Hand-made paper

Respiratory tract

Bacterial colony count

Hardwoods

Scouring

Bio-dispersant

Hardwoods

Soil textures

Cadmium (II) ions

Industrial effluents

Stock preparation

Cation exchange resins

Job-shop production

Sun-mica

Cement plant

Jute caddies

T D L Poster

Chemical oxidation demand

Lemon

Toxic elements

Concentrate

Lysimetric approach

 

Cyclic voltammetry

Mechanical pulping