This research aimed to study the optimum conditions for making raw lime from shells which consisted of 9 conditions: calcined at three levels of 700 800 and 900 degrees Celsius for 1 2 and 3 hours. Calcium element content in raw lime using X-ray fluorescence (XRF) measurement and structural analysis of calcium compounds by X-Ray Diffraction (XRD). The research results were found. 1. Optimal conditions for making lime mortar are temperature 800 degrees Celsius duration 2 hours. The physical characteristics of raw lime are white and porous. 2. The calcium content from the shells calcination at 800 degrees Celsius for 1 2 and 3 hours was 98.22% 96.70% 97.89%. 3. Changes in the calcium compounds of raw lime obtained by calcining the shell at 800 degrees Celsius for 1 hour were mainly found in the form of calcium carbonate (CaCO3). At 2 3 hours calcium carbonate (CaCO3) is mostly converted to form calcium hydroxide (Ca(OH)2)compound calcium oxide (CaO) compound is formed.

This research on the participation of the community in Lamphaya Floating Market Nakhon Pathom Province to develop sustainable tourism has the objective of studying the participation of locals in the community to manage tourism at Lamphaya Floating Market sustainably and to identify ways to encourage locals in the community to co-operate in sustainable tourism management at Lamphaya Floating Market. The research method involved the collection of both primary and secondary data. The primary data was obtained from interviews and questionnaires. The interview were in-depth interviews with structured interview questions. The researcher interviewed one participant who identified other potential informants to interview and the process was repeated until the interviews were completed. The qualitative data analysis involved Content Analysis which was performed by coding interview transcripts. The quantitative method was also employed: 100 questionnaires were distributed through Accidental Random Sampling to locals living in the Lamphaya area and to local government officials (Sub district Administrative Organization) at Lamphaya Floating Market. This process produced results about how locals in the community co-operate in sustainable tourism management at Lamphaya Floating Market. All data are analysis was performed by computer program. The research found that the participation of locals in tourism management was at a high level especially in terms of location management. Locals participate in planning attend meetings about policy and discuss new ideas with regard to many things. However while locals are able to evaluate tourism facilities as good or not good they are not directly involved in the process of planning or policy or management. Locals co-operate to manage human resources very well but they do not participate much in setting the rules of the village. This is because the rules are flexible and are transferred from generation to generation rather than being fixed. On the other hand locals participate in the management of the creative local product process at a high level. Suggestions 1. The new generation should be encouraged to participate in tourism management. 2. The locals should think about the public and love the community more than seek private benefits through their own business. 3. Government should be involved in helping locals and local government should be involved in meeting and planning about tourism management at Lamphaya Floating Market. 4. Locals and the community in the nearby area should be encouraged to recognize the importance of sustainable tourism management.