scholarly journals Binary adsorption of [Pb(II) + Co(II)] from aqueous solution using thiolated saw dust

2021 ◽  
Author(s):  
Neha Dhiman
Keyword(s):  
Metal Ions ◽  
Low Cost ◽  
Binary Solution ◽  
Pure Component ◽  
Small Scale ◽  
Batch Experiments ◽  
Saw Dust ◽  
Nature Study ◽  
Technology Advancement ◽  
Small Scale Industries

Abstract Technology advancement contributed to an increase in industrial activities, resulting in the introduction of metal ions into water resources at concentrations well above the WHO limits. Heavy metals are highly toxic and carcinogenic; usually occur as multicomponent mixtures in aquatic environment. In present study, batch experiments have been conducted to study the dependence of varying concentration, time, pH and temperature on the uptake of Pb(II) as pure component under equilibrium conditions using thiolated saw dust. Saw dust has been chemically modified with thioglycolic acid and characterised using proximate and FTIR analyses, degree of thiolation has also been determined. To determine the effect of presence of Co(II) ions on the uptake of Pb(II) ions, batch experiments for [Pb(II) + Co(II)] mixture have been carried out for concentration ratios of 1:0, 1:1, 1:2, 1:3, 1:4 of Pb:Co at pH 5 and data has been interpreted using Langmuir competitive isotherm shows that adsorption of Pb(II) has been suppressed by the presence of Co(II) ions in the binary solution, hence the adsorption process is antagonistic in nature. Study also indicates the possibility of simultaneous removal of both metal ions using low cost bioadsorbent, which is economical specially for application in small scale industries.

scholarly journals A Novel Robotic Arm Design for Small Scale Industries Using myRIO

2018 ◽  
Vol 7 (4.6) ◽  
pp. 257
Author(s):  
M. Srilatha ◽  
R. Hemalatha
Keyword(s):  
Working Conditions ◽  
Raw Materials ◽  
Technological Development ◽  
Low Cost ◽  
Robotic Arm ◽  
Small Scale ◽  
Starting Point ◽  
Complete Automation ◽  
Human Effort ◽  
Small Scale Industries

In small-scale industries, under extreme working conditions, personnel are frequently involved in lifting and carrying raw materials, which is hazardous at times. Robot, a machine with intelligence can perform the same task with the help of control instructions fed by computer or remote control. Technological development in the area of robotics made it possible to design robotic arm with the same degree of precision as a replacement to the human intervention. This will introduce automation in small-scale industries, which saves time, reduces human effort and expenditure in production. Further, this will be a starting point for complete automation of entire process, which can be expensive and complicated. NI LabVIEW along with NI-myRIO can provide a better solution in designing a more precise and accurate robot in a very low cost, which is affordable by small-scale industries. NI-myRIO is used to generate and acquire signals for controlling and processing. Further it has an inbuilt processor and FPGA which has many reconfigurable analogue and digital features.  

Small-Scale Development of Product

2021 ◽  
pp. 77-94
Author(s):  
Jyoti Yadav ◽  
Swati Agarwal ◽  
Suphiya Khan
Keyword(s):  
Product Development ◽  
Low Cost ◽  
Small Scale ◽  
Management Skills ◽  
Employment Opportunities ◽  
Income Source ◽  
Small Scale Industry ◽  
Is Strategy ◽  
High Level ◽  
Small Scale Industries

Small-scale product development is not for everyone, and it needs a high level of discipline, dedication, persistence, and creativity as well as a lot of work. Before setting up a small-scale business, one needs seed money, physical location of the business venture, construction work, equipment/machinery maintenance, management skills, accounting skills, and last but not least, marketing skills. For the development of any area, the small-scale industry development is very important mainly for the income source of the community and for employment opportunities. On the basis of study, four strategies that are used for the development of small-scale industries were found, and these strategies are 1) promotion and development of institutional, business groups, and cooperatives; 2) determination brands; 3) strategy competition with low cost and product development; 4) to improve final access market orientation strategies. On the basis of analysis of these strategies, they are prioritized, and the first priority is strategy.

scholarly journals Adsorption of Co2+ from Aqueous Solution Using G Low Cost Adsorbent

2020 ◽  
pp. 6-10
Author(s):  
Gharde B. D. ◽  
Gharde A. D.
Keyword(s):  
Heavy Metals ◽  
Metal Ions ◽  
Low Cost ◽  
Packed Column ◽  
Mining Operation ◽  
Tree Bark ◽  
Small Scale ◽  
Batch Adsorption ◽  
Adsorption Studies ◽  
Column Adsorption

Concentration of water supplies with metals is constant area of concern naturally an international. The challenge to remediate hazardous metals containing waste stream from present formal mining operation, industrial sites and ground water is immersed. Adsorption has proved to be an accelerate way to treat industrial waste effluents. The heavy metals renders the water unsuitable for drinking and also higher toxic to human being. Removal of these material is therefore essential. The studies pertaining to the use of inexpensive agro based adsorbents, such as tree bark, saw dust, Corn cob, straw and fly ashes for heavy metals ions has been investigated using Mangifeara indica substrate through batch adsorption studies. Result obtained are quite encouraging, batch adsorption studies have shown that removal of metal ions is dependent upon process parameters like contact time, temperature, metal ions concentration, dosage and pH. The maximum removal of Co2+ to the extent of has been achieved at pH 4 to 6 in 30 min in the concentration range 30 to 90 mg/liter. The use of packed column adsorption has been investigated at the optimum condition, to study the feasibility of the process s for application in small scale industries.

scholarly journals ERGONOMIC EVALUATION OF LOW COST ADJUSTABLE WORKSTATION FOR ASSEMBLY OPERATION

2014 ◽  
pp. 84-89
Author(s):  
QUTUBUDDIN S. M ◽  
S.S. HEBBAL ◽  
A.C.S. KUMAR
Keyword(s):  
Low Cost ◽  
Health And Safety ◽  
Small Scale ◽  
Design Features ◽  
Improve Performance ◽  
Assembly Task ◽  
Assembly Operation ◽  
Operator Performance ◽  
Industrial Assembly ◽  
Small Scale Industries

Ergonomics is the science and technology of fitting the activities and environment to the abilities, dimensions, and needs of people to improve performance while enhancing comfort, health and safety [1] The objective of the present study was to investigate the effects of an ergonomically designed adjustable workstation for performing a repetitive industrial assembly task on operator performance and productivity. Ergonomically designed fully adjustable assembly workstations could be expensive for companies to adopt, especially the small scale industries. Therefore, a low-cost, ergonomically designed adjustable assembly workstation was designed, developed and evaluated for assembly of a product in a manufacturing company. Experiments were conducted on the existing fixed height and on the newly designed ergonomic assembly workstation using five industrial assembly operators. The operator performance on the ergonomically designed workstation was 29% higher compared to the existing non ergonomically designed fixed height assembly workstation. The increased performance was due to flexibility and ergonomic design features incorporated in the workstation.

Time Driven Activity Based Costing (TDABC) Model for Cost Estimation of Assembly for a SSI

2018 ◽  
Vol 6 (2) ◽  
pp. 56-69
Author(s):  
Ashwin Bhimrao Ganorkar ◽  
Ramesh Ramchandra Lakhe ◽  
Kamalkishor N. Agrawal
Keyword(s):  
Cost Estimation ◽  
Low Cost ◽  
Small Scale ◽  
Activity Based Costing ◽  
New Approach ◽  
Common Activity ◽  
Time Required ◽  
The Cost ◽  
Small Scale Industries

Costing is an important issue in a competitive world. Many companies had adopted TDABC for better cost visibility. Assembly is very common activity in the small scale industries (SSI). In a SSI, many operations like riveting, drilling, fastening, loosening and tightening, hammering, labeling, aligning, etc. are carried out at the time of assembly. Also the sequence and the time of the operating vary for each product. Therefore, it is difficult to estimate the cost of complex assembly. This paper proposed a time driven activity based costing (TDABC) model to estimate the cost of assembly for SSI. TDABC uses time equations to estimate the time required for an activity. A new approach to develop the time equation using maynard operation sequence technique (MOST) is presented. This paper also presents the modification in the time equation to handle the complexity of the activity. The application of the model is presented with the case study. The cost analysis helps to identify the opportunities for low cost assembly solution.

Impact of Stress on Employees of Small Scale Industries

2012 ◽  
Vol 3 (7) ◽  
pp. 1-3
Author(s):  
Dr. A. Jeyapragash Dr. A. Jeyapragash ◽  
◽  
R. Boopathi R. Boopathi
Keyword(s):  
Small Scale ◽  
Small Scale Industries

Impact Of Human Resource Practices In Small Scale Industries In Thoothukudi District Of Tamilnadu

2019 ◽  
Vol 5 (4) ◽  
pp. 160-169
Author(s):  
Srimo Fernandas
Keyword(s):  
Economic Growth ◽  
Human Resource ◽  
Management Practices ◽  
Human Factor ◽  
Vital Role ◽  
Small Scale ◽  
Average Income ◽  
Small Scale Industry ◽  
Human Resource Management Practices ◽  
Small Scale Industries

In the economic growth of a country, the human factor plays a vital role. The study has been made to study the growth of small scale industries in the development of human resource management practices of in Thoothukudi district. The study has the following objectives. To study the socio-economic outline of the small scale industry owners. To understand the nature of management of the small-scale industry. To find out the motivational factors for starting small-scale industries. To analyse the average income generated by different activities by the small scale industry owners.

Comparison of the fixation of several metal ions onto a low-cost biopolymer

2002 ◽  
Vol 2 (5-6) ◽  
pp. 217-224 ◽  
Author(s):  
Z. Reddad ◽  
C. Gérente ◽  
Y. Andrès ◽  
P. Le Cloirec
Keyword(s):  
Aqueous Solutions ◽  
Metal Ions ◽  
Low Cost ◽  
Operating Conditions ◽  
Order Kinetic ◽  
Adsorption Mechanisms ◽  
Equilibrium Data ◽  
Order Kinetic Model ◽  
Beet Pulp ◽  
Removal Of Metal Ions

In the present work, sugar beet pulp, a common waste from the sugar refining industry, was studied in the removal of metal ions from aqueous solutions. The ability of this cheap biopolymer to sorb several metals namely Pb2+, Cu2+, Zn2+, Cd2+ and Ni2+ in aqueous solutions was investigated. The metal fixation capacities of the sorbent were determined according to operating conditions and the fixation mechanisms were identified. The biopolymer has shown high elimination rates and interesting metal fixation capacities. A pseudo-second-order kinetic model was tested to investigate the adsorption mechanisms. The kinetic parameters of the model were calculated and discussed. For 8 × 10-4 M initial metal concentration, the initial sorption rates (v0) ranged from 0.063 mmol.g-1.min-1 for Pb2+ to 0.275 mmol.g-1.min-1 for Ni2+ ions, with the order: Ni2+ > Cd2+ > Zn2+ > Cu2+ > Pb2+. The equilibrium data fitted well with the Langmuir model and showed the following affinity order of the material: Pb2+ > Cu2+ > Zn2+ > Cd2+ > Ni2+. Then, the kinetic and equilibrium parameters calculated qm and v0 were tentatively correlated to the properties of the metals. Finally, equilibrium experiments in multimetallic systems were performed to study the competition of the fixation of Pb2+, Zn2+ and Ni2+ cations. In all cases, the metal fixation onto the biopolymer was found to be favourable in multicomponent systems. Based on these results, it is demonstrated that this biosorbent represents a low-cost solution for the treatment of metal-polluted wastewaters.

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