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Waste Ecosystem \u0e01\u0e32\u0e23\u0e1e\u0e31\u0e12\u0e19\u0e32\u0e23\u0e30\u0e1a\u0e1a\u0e19\u0e34\u0e40\u0e27\u0e28 \u0e01\u0e32\u0e23\u0e08\u0e31\u0e14\u0e01\u0e32\u0e23\u0e02\u0e22\u0e30 \u0e40\u0e1e\u0e37\u0e48\u0e2d\u0e2a\u0e19\u0e31\u0e1a\u0e2a\u0e19\u0e38\u0e19\u0e01\u0e32\u0e23\u0e02\u0e31\u0e1a\u0e40\u0e04\u0e25\u0e37\u0e48\u0e2d\u0e19\u0e21\u0e2b\u0e32\u0e27\u0e34\u0e17\u0e22\u0e32\u0e25\u0e31\u0e22\u0e2a\u0e35\u0e40\u0e02\u0e35\u0e22\u0e27 \u0e41\u0e25\u0e30\u0e40\u0e2a\u0e23\u0e34\u0e21\u0e2a\u0e23\u0e49\u0e32\u0e07\u0e04\u0e38\u0e13\u0e20\u0e32\u0e1e\u0e0a\u0e35\u0e27\u0e34\u0e15\u0e02\u0e2d\u0e07\u0e1a\u0e38\u0e04\u0e25\u0e32\u0e01\u0e23\u0e43\u0e19 \u0e21\u0e2b\u0e32\u0e27\u0e34\u0e17\u0e22\u0e32\u0e25\u0e31\u0e22\u0e23\u0e32\u0e0a\u0e20\u0e31\u0e0f\u0e1a\u0e38\u0e23\u0e35\u0e23\u0e31\u0e21\u0e22\u0e4c \u0e20\u0e32\u0e22\u0e43\u0e15\u0e49 \u0e01\u0e34\u0e08\u0e01\u0e23\u0e23\u0e21 &quot; Green Ambassador&quot; 04\/07\/2026 - \u0e2a\u0e32\u0e02\u0e32\u0e27\u0e34\u0e0a\u0e32\u0e04\u0e13\u0e34\u0e15\u0e28\u0e32\u0e2a\u0e15\u0e23\u0e4c<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/math.bru.ac.th\/en\/2026\/07\/04\/\ud83c\udf43-\u0e2d\u0e32\u0e08\u0e32\u0e23\u0e22\u0e4c\u0e41\u0e25\u0e30\u0e19\u0e31\u0e01\u0e28\u0e36\u0e01\u0e29\u0e32\u0e2a\u0e32\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\ud83c\udf43 \u0e2d\u0e32\u0e08\u0e32\u0e23\u0e22\u0e4c\u0e41\u0e25\u0e30\u0e19\u0e31\u0e01\u0e28\u0e36\u0e01\u0e29\u0e32\u0e2a\u0e32\u0e02\u0e32\u0e27\u0e34\u0e0a\u0e32\u0e04\u0e13\u0e34\u0e15\u0e28\u0e32\u0e2a\u0e15\u0e23\u0e4c  \u0e40\u0e02\u0e49\u0e32\u0e23\u0e48\u0e27\u0e21\u0e42\u0e04\u0e23\u0e07\u0e01\u0e32\u0e23 BRU Green &amp; Clean Campus. Waste Ecosystem \u0e01\u0e32\u0e23\u0e1e\u0e31\u0e12\u0e19\u0e32\u0e23\u0e30\u0e1a\u0e1a\u0e19\u0e34\u0e40\u0e27\u0e28 \u0e01\u0e32\u0e23\u0e08\u0e31\u0e14\u0e01\u0e32\u0e23\u0e02\u0e22\u0e30 \u0e40\u0e1e\u0e37\u0e48\u0e2d\u0e2a\u0e19\u0e31\u0e1a\u0e2a\u0e19\u0e38\u0e19\u0e01\u0e32\u0e23\u0e02\u0e31\u0e1a\u0e40\u0e04\u0e25\u0e37\u0e48\u0e2d\u0e19\u0e21\u0e2b\u0e32\u0e27\u0e34\u0e17\u0e22\u0e32\u0e25\u0e31\u0e22\u0e2a\u0e35\u0e40\u0e02\u0e35\u0e22\u0e27 \u0e41\u0e25\u0e30\u0e40\u0e2a\u0e23\u0e34\u0e21\u0e2a\u0e23\u0e49\u0e32\u0e07\u0e04\u0e38\u0e13\u0e20\u0e32\u0e1e\u0e0a\u0e35\u0e27\u0e34\u0e15\u0e02\u0e2d\u0e07\u0e1a\u0e38\u0e04\u0e25\u0e32\u0e01\u0e23\u0e43\u0e19 \u0e21\u0e2b\u0e32\u0e27\u0e34\u0e17\u0e22\u0e32\u0e25\u0e31\u0e22\u0e23\u0e32\u0e0a\u0e20\u0e31\u0e0f\u0e1a\u0e38\u0e23\u0e35\u0e23\u0e31\u0e21\u0e22\u0e4c \u0e20\u0e32\u0e22\u0e43\u0e15\u0e49 \u0e01\u0e34\u0e08\u0e01\u0e23\u0e23\u0e21 &quot; Green Ambassador&quot; 04\/07\/2026\" \/>\n<meta property=\"og:description\" content=\"&nbsp; &nbsp; &nbsp; &nbsp;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/math.bru.ac.th\/en\/2026\/07\/04\/\ud83c\udf43-\u0e2d\u0e32\u0e08\u0e32\u0e23\u0e22\u0e4c\u0e41\u0e25\u0e30\u0e19\u0e31\u0e01\u0e28\u0e36\u0e01\u0e29\u0e32\u0e2a\u0e32\/\" \/>\n<meta property=\"og:site_name\" content=\"\u0e2a\u0e32\u0e02\u0e32\u0e27\u0e34\u0e0a\u0e32\u0e04\u0e13\u0e34\u0e15\u0e28\u0e32\u0e2a\u0e15\u0e23\u0e4c\" \/>\n<meta property=\"article:published_time\" content=\"2026-07-04T09:54:14+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-07-04T10:09:59+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/math.bru.ac.th\/wp-content\/uploads\/2026\/07\/S__9789460_0.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1477\" \/>\n\t<meta property=\"og:image:height\" content=\"1108\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"webmaster\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"webmaster\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/math.bru.ac.th\/2026\/07\/04\/%f0%9f%8d%83-%e0%b8%ad%e0%b8%b2%e0%b8%88%e0%b8%b2%e0%b8%a3%e0%b8%a2%e0%b9%8c%e0%b9%81%e0%b8%a5%e0%b8%b0%e0%b8%99%e0%b8%b1%e0%b8%81%e0%b8%a8%e0%b8%b6%e0%b8%81%e0%b8%a9%e0%b8%b2%e0%b8%aa%e0%b8%b2\/\",\"url\":\"https:\/\/math.bru.ac.th\/2026\/07\/04\/%f0%9f%8d%83-%e0%b8%ad%e0%b8%b2%e0%b8%88%e0%b8%b2%e0%b8%a3%e0%b8%a2%e0%b9%8c%e0%b9%81%e0%b8%a5%e0%b8%b0%e0%b8%99%e0%b8%b1%e0%b8%81%e0%b8%a8%e0%b8%b6%e0%b8%81%e0%b8%a9%e0%b8%b2%e0%b8%aa%e0%b8%b2\/\",\"name\":\"\ud83c\udf43 \u0e2d\u0e32\u0e08\u0e32\u0e23\u0e22\u0e4c\u0e41\u0e25\u0e30\u0e19\u0e31\u0e01\u0e28\u0e36\u0e01\u0e29\u0e32\u0e2a\u0e32\u0e02\u0e32\u0e27\u0e34\u0e0a\u0e32\u0e04\u0e13\u0e34\u0e15\u0e28\u0e32\u0e2a\u0e15\u0e23\u0e4c \u0e40\u0e02\u0e49\u0e32\u0e23\u0e48\u0e27\u0e21\u0e42\u0e04\u0e23\u0e07\u0e01\u0e32\u0e23 BRU Green & Clean Campus. 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