จำนวน Repository ( 8 )
A study on activated carbon from bagasse and charcoal adsorption efficiency in decolorization and COD of sugar factory wastewater from rajburi sugar co., ltd
The current time activated Carbon spaciously have been used in the process of wastewater Treatment and Air Pollution Treatment because of it can absorb various materials such as colors smells and organic materials both in the wastewater or air pollution In this research the researcher interest to study the activated carbon from bagasse as become more quantity in the country to use for reducing the pollution of wastewater at Sugar Company and recycling the leaving materials. This study is the Experimental Research being divided into 2 kinds of charcoal: 1) synthesizing activated carbon from bagasse 2) charcoal. The three contents of waste water: 10 50 and 100 percent are used for analyzing and testing at three periods of time: 30 60 and 90 minutes. The example of the wastewater were analyzed the color and COD. The using activated carbon from the bagasse with the content of wastewater at 10% shown that it could not absorb the color differently at every periods of time the color remained lower than 5 Pt-Co and it could reduce more COD at the more periods of time. At the content of waste water 50% shown that the more using time for absorbing the color the quality of absorbing become lower (10 15 and 20 Pt-Co) but it became more reduce COD while the absorbing the color at the content of waste water 100% found that when used the more time quality of absorbing the color became lower (25 30 and 35) while the quality of reducing the COD became increase. The charcoal at the content of wastewater 10% its’ absorbing color was 5 Pt-Co at the all periods of time but the result of reducing the COD was increase: 4300 4000 and 3800 respectively. As the testing the content of waste water at 50% shown that the more using the time its’ quality of absorbing the color became lower while the quality of reducing the COD became decrease: 7330 6500 and 6030 respectively. As studying the content of waste water 100% found that the more using the time for treatment the waste water its’ quality became decrease but it could more reduced COD. The comparison between the activated carbon from bagasse and the charcoal shown that the activated carbon from bagasse can absorb the color better than the charcoal at 0.25 Pt-Co and could more reduce COD than the charcoal 43.5 % by average at the content of waste water 10%. While the waste water 50% the activated carbon from bagasse could more absorb the color than the charcoal at 55% and can more reduced the COD than the charcoal 19.34% averagely. For the content of waste water 100 % the activate carbon from bagasse could more absorb the color than the charcoal at 54.17% and reduced the COD 7.83% by averaging.
Removal of color and cod in ozonation process treating corrugated boxes manufactory wastewater
This research aims to study the removal of color and chemical oxygen demand (COD) from the corrugated industry with the ozonnation. The use of ozone with capacity in the range of 24.5-59.0 mg per hr. By studying the factors and conditions that are suitable for the treatment of COD in wastewater which consists of the following factors.pH 4 7 and 10 ozone exposure period of 120 minutes and initial COD concentration of 200-720 mg per liter. Have conducted experiments using real wastewater from the plant mentioned above affect the performance of the reactor COD with the ozonnation. At pH 4 to provide maximum efficiency in the treatment of COD compared to pH 7 and pH 10. In addition the concentration of the starting COD higher performance of the reactor is reduced. The results suggest that the treated of COD up to 81.6 percent. COD in wastewater treatment is started at 200 mg per liter. When the concentration of COD in wastewater from the 450 mg and 720 mg per liter. Found that the performance of the reactor the COD decreased to 71.2 and 64.4 percent respectively. For effective treatment of wastewater with turbidity and color ozone process Nation to be aligned with the performance of the reactor COD. The performance of the reactor is decreased when the concentration of the starting COD higher
การพัฒนากระบวนการควบคุมชิ้นงานระหว่างกระบวนการผลิตในโรงงานอุตสาหกรรมฟอกย้อมและตกแต่งผ้าผืนด้วยการประยุกต์ใช้ระบบบาร์โค้ด
The objective of this research is to develop a technology management system for industrial Fabric Pretreatment Dyeing and Finishing factory to resolve existing problems caused by manual input. Firstly this research was performed to study the current work-in processes data. After that these data were analyzedranked and grouped for designing and developing a customized oracle database by implementing SQL on a UNIX server. Finally the new system was integrated barcode technology for connection to facilitate works. Before the renovation to input data by an employees it makes to delay time 1440 minutes from actual manufacturing data. The result represent at 260.67 unit/month as well as newly application of barcode technology. According to this system application it has been found that the manufacturing data in production process are real-time monitored. The result of the research can be increase at 94.42 unit/month as well as reduce expenses on documents above 10000 Bath/month. In addition the operator could also be reduce from 4 to 0. Including enhanced with barcode technology can also facilitate communication with customers making business competitive sustainable future.
ประสิทธิภาพการปฏิบัติงานและความสำเร็จในวิชาชีพบัญชีกรณีศึกษา : นักบัญชีในบริษัทจดทะเบียนในตลาดหลักทรัพย์แห่งประเทศไทย
This research aims to study 1) factors affecting on operational efficiency; and 2) factors affecting on accounting professional success. The samples of this study consists of 260 accountants which has experience in accounting performance at least one year. The research instrument was a questionnaire which development by using IOC technique and already test content and construct validity including reliability. Data analysis employed descriptive statistic such as frequency percentage mean and standard deviation including Pearson correlation and multiple regression analysis. The results of this article found that most accountants believe that mean of the level of operational efficiency = 4.07 (S.D. = 0.460) and mean of the level of accounting profession success = 3.95 (S.D. = 0.530) both of them were quite well in Thailand 4.0. The result also show that level of professional accountant competencies compliance with the code of ethics profession and professional judgment have positive significant on operational efficiency at the significant level α < 0.01 while operational efficiency the level of professional accountant competencies efficiency of internal control system and professional judgment have positive significant on the level of accounting profession success at the significant level α < 0.01. These results also explained that both of the level of professional accountant competencies and professional judgment have both direct andindirect effect on the level of accounting profession success through operational efficiency with the significant level α < 0.01. Additionally control variable -- work position also has positive significant on both the level of professional accountant competencies and the level of accounting professional success at the significant level α < 0.05.
ระบบตรวจสอบครุภัณฑ์ผ่านเว็บแอพพลิเคชั่นกรณีศึกษางานพัสดุ คณะวิทยาศาสตร์และเทคโนโลยี
The Online Equipment Inventory System for Subdivision of Supplies Case study at Faculty of Science and Technology is developed based on web application by using PHP and Laravel framework. The purposes of this system are firstly to systematically manage the database system of the asset equipment in the Faculty of science and technology. Secondly to increase the searching process rapidity and to create the summarize reports in PDF format. Lastly to produce the QR code for verified the asset equipment. This system is consists of the administrators and system users. In the part of satisfied evaluation the system is evaluated by the example target officers group. The overall result of satisfaction score is 4.10 which means the system can fulfill the requirement in a good level. Moreover when considering in each part of satisfaction; 1. design part 2. efficiency and functional part and 3. system satisfaction part the result scores are 3.96 4.18 and 4.06 consequently. In conclusion the Online Equipment Inventory System for Subdivision of Supplies Case study at Faculty of Science and Technology is work properly.