PSU Knowledge Bank Collection:http://kb.psu.ac.th:80/psukb/handle/2010/72822024-03-28T09:00:22Z2024-03-28T09:00:22ZBird Diversity and Habitat Heterogeneity in the Urban and Sub-Urban Areas of Mueang Pattani District, Pattani ProvincePhakawat Kittikhunodomhttp://kb.psu.ac.th:80/psukb/handle/2016/193352024-01-25T07:11:06Z2023-01-01T00:00:00ZTitle: Bird Diversity and Habitat Heterogeneity in the Urban and Sub-Urban Areas of Mueang Pattani District, Pattani Province
Authors: Phakawat Kittikhunodom
Abstract: This study was carried out in October 2020 – September 2021 to study bird diversity and habitat relationship in the urban areas of Mueang Pattani district, Pattani Province. The bird population contains 14 orders, 14 families, 85 genera, and 111 species. Most species were listed as the Least Concern in the IUCN endangered list, except 7 species. It was also found that the richness of bird species was highest in October. The Shannon-Wiener’s diversity index and evenness index of the total population were 3.14 and 0.21, respectively. Comparing the diversity index and evenness index of two areas, it was found that in the open areas (3.29 and 0.26, respectively) were higher than in the built-up areas (2.62 and 0.22, respectively). We analyzed the mean differences of diversity index, and it was found that in August September and October, the open areas were significantly more than the built-up areas (P=0.032, 0.015 and 0.002, respectively). In the study of human-bird interaction, it was found that the sampling groups most in viewed the birds had no effect, except some sampling groups that view birds positively on generating income from the bird's nest harvesting. Therefore, this study is vital to understand the bird ecology in the urban areas, providing the bird population and diversity for the conservation status (IUCN Data Red List) consideration and for conservation plans for the potential that support the population of birds, and potentially the other wildlifes in terms of feeding ground, nesting ground and roosting ground. Finally, this study can set the framework for the coexistence of humans and wildlife in the future.
Description: วิทยาศาสตรมหาบัณฑิต (ชีววิทยาประยุกต์), 25662023-01-01T00:00:00Zการประเมินปริมาณสารกัมมันตรังสีธรรมชาติและแก๊สเรดอนในวัสดุก่อสร้างและในอาคารเรียนบริเวณตอนล่างของจังหวัดยะลาสุวนันท์ แดงวิไลhttp://kb.psu.ac.th:80/psukb/handle/2016/192222023-12-19T09:11:15Z2023-01-01T00:00:00ZTitle: การประเมินปริมาณสารกัมมันตรังสีธรรมชาติและแก๊สเรดอนในวัสดุก่อสร้างและในอาคารเรียนบริเวณตอนล่างของจังหวัดยะลา
Authors: สุวนันท์ แดงวิไล
Abstract: The objectives of this research was to investigate the amount of natural
radioactive substances, including 226Ra, 232Th and 40K in 41 samples in building materials
using the gamma spectrometry analysis system with a highly pure geranium detector
(HPGe), to assess the relevant radioactive hazard index and to study the amount of
radon gas in the school building in lower part of Yala Province because the lower part
of Yala province has geological conditions that consist of sedimentary rocks,
metamorphic rocks, and granite igneous rocks scattered in various areas. There are also
construction industries where most of these building materials are granite, limestone
and often contain naturally occurring radionuclides 226Ra, 232Th and 40K, which are the
source of radon emissions which result in health problems and increase the chances
of lung cancer of residents in the area in the long run.
It was found that the mean radioactive contents of 226Ra, 232Th and 40K
in rock, soil, sand samples in the lower part of Yala Province were higher than the
world average for soil (UNSCEAR, 2000) and the world average for building materials
(UNSCEAR, 1993). In the rock samples, the highest concentrations of 226Ra and 40K were
found at Ban Padeng School, Than To District. As for 232Th, it had the highest value in
Betong School (Weerarat Prasarn), Betong District. Soil samples showed that the
radioactive content of 226Ra, 232Th was the highest at Ban Wang Mai School, Betong
District. 40K was highest in Ban Thai Pattana School, Than To District, and for sand
samples, 226Ra, 232Th was highest in Ban Sri Nakhon School, Than To District, while 40K
was highest in Bang Lang School, Bannang Sata District. For the five radiation hazard indices, including the radium equivalent (Raeq), external hazardous index (Hex), internal hazardous index (Hin) and the amount
of gamma radiation absorbed (D) and annual radiation dose (E), it was found that all 5 radiation hazard index values of the stone samples were lower than the specified standards. For the soil and sand samples, the radium equivalent radioactivity, the external hazardous index, the internal hazardous index, and the absorbed gamma
radiation dose rate were higher than the standard set. Only the annual radiation dose was below the established standard.
In terms of radon concentrations within school buildings in the lower part of Yala Province, the mean values were 9.12±3.42 Bq/m3, with the highest values at Ban Sai Kaew School, Bannang Sata District and lowest at Ban Tanohputeh School, Bannang Sata District. All schools were below the threshold set by the US EPA for
indoor radon levels of 148 Bq/m3. In the study area, the geology was granite but the concentration of radon gas was not very high because most of the school buildings have windows and doors open, which could the concentration of radon inside the building.
Description: วิทยาศาสตรมหาบัณฑิต (ฟิสิกส์ประยุกต์), 25662023-01-01T00:00:00Zการบำบัดและการรีไซเคิลคอนเดนเสทจากกระบวนการผลิตผลพลอยได้ของ โรงงานทูน่ากระป๋องทรงฤทธิ์ ใบดุเก็มhttp://kb.psu.ac.th:80/psukb/handle/2016/191612023-12-07T08:52:53Z2023-01-01T00:00:00ZTitle: การบำบัดและการรีไซเคิลคอนเดนเสทจากกระบวนการผลิตผลพลอยได้ของ โรงงานทูน่ากระป๋อง
Authors: ทรงฤทธิ์ ใบดุเก็ม
Abstract: This research aimed to treat the condensate from by-product production processes of canned tuna factories and recycle to the fish oil production process by reducing pH and remove the odors by using commercial activated carbon, Eunicarb ID900. The research began with a study of the effect of pH (7-9) on the elimination of COD (parameters representing odors) and followed by a semi-industrial continuous adsorption study to treat condensate water in the actual process. The result showed that a faster absorption rate was achieved at lower pH while higher COD removal obtained at higher pH with the highest COD removal efficiency of 90%. The adsorption was fitted well with Pseudo-second order kinetic absorption and Freundlich's adsorption isotherm. The study of semi-industrial condensate water treatment using 15 cm diameter and 150 cm in height adsorbent columns revealed that at all the study range flow rate of condensate water (pH adjustment to 7.3 ± 0.1) of 0.5 - 2.5 m3/h, can effectively remove the pungent odor and produce the higher condensate water which meet the limitation of water for fish oil extraction manufacturing. Furthermore, the treatment system was continuously run at an actual condensate production rate at flow rate of 2.5 m3/h, and 6 months operation cycle was suggested. No effect in both quantitative and qualitative quality of fish oil was observed after processing with the treated condensate. The economic assessment for the actual plant evaluates the cost for condensate treatment of 8.14 Baht/m3, saving for the feed water and condensate treatment of 202,500 Baht/year, and a payback period of 2.86 years.
Description: วิทยาศาสตรมหาบัณฑิต (เคมีประยุกต์), 25662023-01-01T00:00:00Zการตรวจสอบความเข้มข้นของก๊าซเรดอนเพื่อคาดคะเนการเกิดแผ่นดินไหวบริเวณรอยเลื่อนเขาเด่น จังหวัดสุราษฎร์ธานีอลิษา ทวีลาภhttp://kb.psu.ac.th:80/psukb/handle/2016/182552023-10-17T08:51:30Z2023-01-01T00:00:00ZTitle: การตรวจสอบความเข้มข้นของก๊าซเรดอนเพื่อคาดคะเนการเกิดแผ่นดินไหวบริเวณรอยเลื่อนเขาเด่น จังหวัดสุราษฎร์ธานี
Authors: อลิษา ทวีลาภ
Abstract: The purpose of this research was to measure the level of radon gas by solid state nuclear track detector method. Along the Khaoden fault line Surat Thani Province, a distance of 23.2 kilometers, with 12 measuring stations collecting samples 12 times between August 2019 and August 2020 to predict the likelihood of an earthquake around the fault line. It was found that The KDF2, KDF3, KDF4 and KDF12 measuring stations have 2-10 times the radon concentration several times higher than the reference location. Which is prone to earthquakes Therefore, such measuring stations should be used as earthquake monitoring stations where radon gas should be continuously monitored.
Description: วิทยาศาสตร์มหาบัณฑิต (ฟิสิกส์ประยุกต์), 25652023-01-01T00:00:00Z