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Journal of Scientific & Industrial Research

 

ISSN: 0022-4456

 

CODEN: JSIRAC (63) (1) 1-92 (2004)

VOLUME 63 NUMBER 1

JANUARY 2004

 

CONTENTS

Review Papers

11

Electrochemical processes for the remediation of wastewater and contaminated soil: emerging technology




















P Chandra Mouli, S Venkata Mohan & S Jayarama Reddy

The review provides an overview of electrochemical processes used for accomplishing the remediation of industrial wastewater, particularly electrooxidation processes and electrocoagulation. The applicability of these technologies for the remediation of contaminated soil is also discussed. The principle of electrooxidation process, involved in the remediation process is described along with specific applications. The application of electrocoagulation process for wastewater treatment is also reviewed.

 

 

20

Chitin and chitosan: chemistry, properties and applications















Pradip Kumar Dutta, Joydeep Dutta & V S Tripathi

Chitin and chitosan are considerably versatile and promising biomaterials. The deacetylated chitin derivative, chitosan is more useful and interesting bioactive polymer. Despite its biodegradability, it has many reactive amino side groups, which offer possibilities of chemical modifications, formation of a large variety of useful derivatives that are commercially available or can be made available via graft reactions and ionic interactions. This study looks at the contemporary research in chitin and chitosan towards applications in various industrial and biomedical fields.

 

 

Papers

32

Prediction of p-wave velocity and anisotropic property of rock using artificial neural network technique





















T N Singh, R Kanchan, K Saigal & A K Verma

In the present investigation, artificial neural network (ANN) technique is used for prediction of p-wave velocity and anisotropy, taking chemical composition and other physico-mechanical properties of rocks as input parameters. Cross-validation technique termed as leaving-one-out is used, as the numbers of data sets are limited  in number. Network with six input neurons, one hidden layer with five neurons, and two output neurons is designed for sandstone. Similar network for marble with four hidden neurons is also designed. To deal with the problem of overfitting of data, Bayesian regulation is used and network is trained with 1500 training epochs. The coefficients of correlation among the predicted and observed values are high and encouraging and mean absolute percentage error (MAPE) obtained are very low.

39

Biodiesel production from Karanja oil






















Vivek & A K Gupta

The study is initiated to investigate the potential of Karanja oil as a source of biodiesel. Biodiesel is an alternative fuel made from renewable biological resources such as, vegetable oil and animal fat. It is completely biodegradable and non-toxic. Main objectives of the study are feasibility of Karanja oil for the production of biodiesel, optimization of different parameters for high yield/conversion of Karanja oil to biodiesel.

48

Studies on pulp and paper-making characteri­stics of some Indian non-woody fibrous raw materials: Part 1







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

Industrial potential applications of Ipomea carnea, Cannabis sativa and Sesbania aculeata are discussed, in order to augment their utilization for manufacturing of high-quality cultural papers. Out of three, two non-woody plants are native of South America and Australia and are available in plenty in all the states of India by adapting Indian climatic conditions. Ipomea carnea that is native to South America resembles with Pinus kesia and Picca abies in lumen and fibre diameter. Although the fibres are short, yet it gives stronger paper due to high collapsing index. Cannabis sativa, which is popularly known as ‘true hemp’, its long bast fibre strands or ribbons are extensively used for manufacturing of quality papers. Sesbania aculeata produces high quality bast fibres resembling with jute.

58

Studies on pulp and paper-making characteristics of some Indian non-woody fibrous raw materials: Part II























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

The pulp and paper making characteristics of three non-woody plants namely, Eulaliopsis binata, Cajanus cajan, and Sesbania sesban are studied extensively. Eulaliopsis binata, which is popularly known as ‘Sabai grass’, consists of long leaf fibres. The fibre length of sabai grass is more than that of bamboo but fibre diam is 2.5-times lower than bamboo. Sabai grass consists of high cellulose and pectose with low lignin content. Sesbania sesban, popularly known as ‘Jainti’ and consists of both bast and woody fibres. The rigidity coefficient, wall fraction and runkel ratio resembles that of bamboo, however the fibre length lies in the vicinity of fibre length of eucalyptus. Cajanus cajan shows higher degree of conformability within the sheet due to lower value of runkel ratio, slenderness ratio, wall fraction and rigidity coefficient and result in greater degree of fibre collapse and higher degree of conformability within the sheet.

 

 

68

Design of temperature and pressure control logic for coal fired fluidized bed boiler on DCS



Sanjeev Gupta, S C Sharma & Chhaya Sharma

The paper deals with control logic’s developed for compartments-1 and 2 according to temperature and pressure limits that exist in coal fired fluidized bed boiler-5 of captive power plant. The control logics are implemented on-line by using the capabilities of TDC-3000 DCS supplied by Tata Honeywell, Pune, India. The ranges of temperature and pressure are studied for the optimum utilization of the fluidized bed boiler. The operation of logics and its implementation are also discussed. This helps in reducing the coal consumptions, which improves the overall productivity.

74

Extraction of zinc(II) using liquid membrane and performance optimization using response surface methodology

















D Shanthana Lakshmi, M Muthukumar & D Mohan

The effects of feed phase pH (1.5 – 3.0), carrier concentration (5 – 20 per cent) and stripping agent concentration (0.3 – 1.3M) are studied using flat sheet supported liquid membrane (FSSLM) and the enrichment factor values are calculated. Second order polynomial regression is used for analysis of the experiment. The experimental values are in good correlation with predicted values and the high correlation coefficient obtained proves the fitness of the selected model.

80

Development of an ingenious composite roll system for merchant mill



















Shibendu Shekhar Roy, Narayan Prasad Mukherjee, Subhendu Mukhopadhyay & Hemendra Nath Sarkar

An attempt is made to design and develop a composite ring roll system such that the roll assembly becomes dimensionally as well as functionally same as a conventional mono-block roll system. The friction lock mechanical shrink fit device proposed in the composite roll system is developed based on the basic principle of friction lock. Torque is transmitted by friction between the contact surfaces of locking system, roll shaft and rolling ring, resulting from tightening of the screws. A scale down model of a composite roll is developed and tested thoroughly to assess its torque transmitting capacity. The results demonstrate the feasibility of a composite roll.

Book Review

84

·         Emotional intelligence at work: A professional guide
       Reviewer: K C Garg

Sci-Tech Update

85

·         Nobel Prizes: 2003

 

·         Ductile intermetallic compounds discovered

 

·         Environment-friendly crops

 

·         Cheaper and cleaner process for dyeing fabric developed

 

·         Breakthrough of e-paper

 

·         Announcement

 
Author Index

Chandra Mouli P

11

Mohan D

74

Sharma S C

68

Dutt Dharm

48,58

Mukherjee Narayan Prasad

80

Singh T N

32

Dutta Joydeep

20

Mukhopadhyay Subhendu

80

Tripathi V S

20

Dutta Pradip Kumar

20

Muthukumar M

74

Tyagi C H

48,58

Gupta A K

39

Roy Shibendu Shekhar

80

Upadhyaya J S

48,58

Gupta Sanjeev

68

Saigal K

32

Venkata Mohan S

11

Jayarama Reddy S

11

Sarkar Hemendra Nath

80

Verma A K

32

Kanchan R

32

Shanthana Lakshmi D

74

Vivek

39

Malik R S

48,58

Sharma Chhaya

68

 

 

 

Keyword Index

 

Alternate fuel

39

Electrochemical process

11

Pressure control logic

68

Anisotropic property

32

Electrocoagulation

11

Pulp materials

48,58

Artificial neural network technique

32

Electrooxidation

11

Pulp production

48,58

Biodegradability

11

Extraction

74

p-Wave velocity

32

Biodegradability

20

Fluidized bed boiler

68

Raw materials

48,58

Biodiesel

39

Fuel

39

Response surface methodology

74

Biomaterials

20

Hot rolling

80

Rocks

32

Cannabis sativa

48

Ipomea carnea

48

Rolling ring

80

Chitin

20

Karanja oil

39

Sesbania aculeata

48

Chitosan

20

Liquid membrane

74

Temperature control logic

68

Circular wedge lock

80

Non-woody fibrous plants

48,58

Wastewater

11

Coal

68

Paper production

48,58

Zinc(II)

74

Composite roll

80

Performance optimization

74

 

 

Contaminated soil

11