Feasibility Study of the enhancing of the color removal efficiency in wastewater using aluminium sulphate with burned husk as a core coagulant in the coagulation process is investigated. The compositions of wastewater from traditional alcoholic beverage factory are given as follows: pH of 4.15-4.24 suspended solids of 204-300 mg/l COD of 4761-5644 mg/l color intensity of 21.05-35.90 S.U. and turbidity of 166-197 NTU. The experimental results revealed that using aluminium sulplate at concentration 0.4 g/l with burned husk sieve number 100 mesh at 2.2 g/l and aluminium sulphate at 0.5 g/l together with burned husk of size 200 mesh at 2.6 g/l can enhance the efficiency of color removal in wastewater. The color removal efficiencies were at 83.06% and 86.00% respectively.

The purposes of this study were to compare the learning achievement retention and preference of students in teaching with games and the conventional teaching in reading the first-angle projection the third-angle projection isometric picture and auxiliary view according to the first-year diploma curriculum. Students were devided in to two groups: the experimental and the control group. The research instruments were the sets of games models transparencies achievement and retention test and the preference guestionnaires develop ped by the researcher The t-test was used to find the mean score difference. The findings were : 1) the learning achievement in learning with games was higher than that of the conventional teaching at .05 level of significance 2) the learning retention in teaching with games was higher than that of the traditional teaching at .05 3) the learning preference in teaching with games was higher than that of the conventional teaching at .05 level of significance.

This survey research aimed to (1) compare English for Communication Arts learning by Com. Arts students’ characteristics and (2) study the relationship between the knowledge attitude and English for Communication Arts learning. The-sampling consisted of 89 Accond Communication Arts program students The data were obtained from a questionnaire and analyzed by using statistics i.e. frequency percentage mean and standard deviation t-test One-way ANOVA LSD (Least Significant Difference) and correlation. The findings are as follows: (1) the difference of students’ characteristics significantly affect English for Communication Arts learning at 0.05. (2) every knowledge skill was positively correlated with the English for Communication Arts learning. And also (3) the attitude on English for Communication Arts learning was positively correlated with the English for communication arts learning. It was recommended here that the teachers should try to change students’ attitude that is English learning is not harder than their ability.

The results of curriculum evaluation showed that the curriculum was up-to-date in terms of theory and technology and in accordance with modern administration. Besides the objectives of the curriculum were appropriately determined for Thai society demand and consistent with the Ninth National Economic and Social Development Plan that included the important point of human resources development and administration conceptualization . The evaluation of input factors indicated that curriculum used a standard procedure to choose students whereas quality instructors efficiency and facilities obtained the same evaluation as the administration and educational management that is at high and highest levels. The outcomes of graduated students were at high level; although the cost effectiveness was not met They were the important indicators that confirmed SUT’s Pledge and Vision.

This research aims to study the demand of the entrepreneurs under the Industrial Estate of Authority of Thailand (IEAT) on the competencies of those graduating in commercial major from vocational colleges and high vocational college. The sample are the 340 entrepreneurs under the IEAT. The tool is questionnaire the reliability are .89 and .92 for vocational and high vocational level respectively. The data are analyzed by mean and standard deviation statistics and it is found that: (1) The demand of the entrepreneurs on the competencies is at a high levels as overall and by level of education and demographic area and (2) The highest demand on the student’s competencies of the entrepreneurs is affective domain.