Sugar refining wastewater is a typical high-concentration organic wastewater, characterized by large production volume, high COD (Chemical Oxygen Demand) and BOD5 (Biochemical Oxygen Demand) concentrations, good biodegradability, and deep color. Its treatment process typically employs a multi-stage combination to achieve efficient and stable purification. The mainstream process flow can be divided into three stages: pretreatment, biological treatment (anaerobic + aerobic), and advanced treatment.<\/p>\n\n\n\n
1. Pretreatment Stage: The purpose is to remove large suspended solids and regulate water quality and quantity, creating stable conditions for subsequent biological treatment.<\/p>\n\n\n\n
1.1 Bar Screening: Removes large solid particles such as bagasse and fibers to prevent clogging of pipes and equipment.<\/p>\n\n\n\n
1.2 Equalization Tank: Homogenizes and equalizes water quality and quantity, mitigating fluctuations in water quality and quantity; retention time is generally 6\u201312 hours.<\/p>\n\n\n\n
1.3 Sedimentation\/Coagulation Sedimentation: Removes silt and suspended solids and reduces turbidity through natural sedimentation or the addition of flocculants.<\/p>\n\n\n\n
2. Biological Treatment Stage (Core Component): This stage utilizes microorganisms to degrade organic matter, often employing a combined anaerobic-aerobic process to balance efficiency and energy consumption.<\/p>\n\n\n\n
2.1 Anaerobic Treatment: Suitable for high-concentration organic wastewater, this stage decomposes large organic molecules into methane and carbon dioxide, reducing COD load while simultaneously generating recyclable biogas. Common processes include: Upflow Anaerobic Sludge Blanket (UASB), Anaerobic Baffled Reactor (ABR), and hydrolysis acidification tanks (to improve biodegradability). Anaerobic treatment can achieve COD removal rates exceeding 80%, with low sludge production and low energy consumption.<\/p>\n\n\n\n
2.2 Aerobic Treatment: This stage further degrades small-molecule organic matter in the anaerobic effluent, ensuring that the effluent quality meets standards. Common processes include: Biological contact oxidation (high resistance to shock loads, stable effluent), activated sludge processes (such as SBR), and combined biofilm-activated sludge processes. Aerobic treatment can achieve BOD removal rates exceeding 90%, but energy consumption is higher.<\/p>\n\n\n\n
3. Advanced Treatment Stage (Optional, for Upgrading Standards or Reuse): Advanced treatment is required when effluent needs to meet stricter standards or be reused.<\/p>\n\n\n\n
3.1 Coagulation and Sedimentation: Adding coagulants (such as PAC, PAM) removes residual colloids and pigments.<\/p>\n\n\n\n
3.2 Filtration: Sand filtration, activated carbon filtration, etc., remove fine suspended solids and residual organic matter.<\/p>\n\n\n\n
3.3 Adsorption: Activated carbon adsorption can effectively decolorize and remove trace amounts of recalcitrant organic matter.<\/p>\n\n\n\n
3.4 Disinfection: Ultraviolet light, ozone, or sodium hypochlorite disinfection kills pathogenic microorganisms and is suitable for reclaimed water.<\/p>","protected":false},"excerpt":{"rendered":"
Sugar refining wastewater is a typical high-concentration organic wastewater, characterized by large production volume, high COD (Chemical Oxygen Demand) and BOD5 (Biochemical Oxygen Demand) concentrations, good biodegradability, and deep color. Its treatment process typically employs a multi-stage combination to achieve efficient and stable purification. The mainstream process flow can be divided into three stages: pretreatment,…<\/p>","protected":false},"author":1,"featured_media":1840,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"footnotes":""},"categories":[1,32],"tags":[579,581,744,831,238,830,549,733,829,578,355,827,552,828],"class_list":["post-2322","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-categorized","category-waste-water-treatment-news","tag-activated-carbon-filtration","tag-advanced-treatment","tag-aerobic-treatment","tag-anaerobic-aerobic-process","tag-biological-treatment","tag-coagulation-tank","tag-disinfection","tag-equalization-tank","tag-pretreatment-stage","tag-sand-filtration","tag-sedimentation","tag-sugar-refining-wastewater-treated","tag-suspended-solids","tag-wastewater-treatment-process"],"_links":{"self":[{"href":"https:\/\/www.luckywwtp.com\/fr\/wp-json\/wp\/v2\/posts\/2322","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.luckywwtp.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.luckywwtp.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.luckywwtp.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.luckywwtp.com\/fr\/wp-json\/wp\/v2\/comments?post=2322"}],"version-history":[{"count":1,"href":"https:\/\/www.luckywwtp.com\/fr\/wp-json\/wp\/v2\/posts\/2322\/revisions"}],"predecessor-version":[{"id":2323,"href":"https:\/\/www.luckywwtp.com\/fr\/wp-json\/wp\/v2\/posts\/2322\/revisions\/2323"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.luckywwtp.com\/fr\/wp-json\/wp\/v2\/media\/1840"}],"wp:attachment":[{"href":"https:\/\/www.luckywwtp.com\/fr\/wp-json\/wp\/v2\/media?parent=2322"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.luckywwtp.com\/fr\/wp-json\/wp\/v2\/categories?post=2322"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.luckywwtp.com\/fr\/wp-json\/wp\/v2\/tags?post=2322"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}