Wastewater from glass factories mainly originates from multiple stages of the production process. According to authoritative publicly available information, it can be summarized into the following categories:<\/p>\n\n\n\n
1. Main Wastewater Sources<\/p>\n\n\n\n
1.1 Raw Material Preparation Stage: Wastewater from washing, screening, and rinsing raw materials such as quartz sand, soda ash, and feldspar.<\/p>\n\n\n\n
1.2 Melting and Forming Stage: Cooling wastewater from glass melting furnaces and molds, usually in large volumes but with low pollutant concentrations. Fluorine-containing wastewater generated from the dissolution of some fluorine-containing raw materials (such as fluorite).<\/p>\n\n\n\n
1.3 Post-Processing Steps:<\/p>\n\n\n\n
a. Cutting and Edge Grinding: Wastewater generated from the use of water and cooling fluids (containing silica sand, abrasives, lubricants, etc.), with high suspended solids (up to 1800 mg\/L) and COD up to 2500 mg\/L.<\/p>\n\n\n\n
b. Cleaning: Removing oil, dust, silica powder, etc., from the glass surface, generating wastewater containing organic matter and suspended solids.<\/p>\n\n\n\n
c. Printing and Coating: Wastewater containing organic matter, heavy metals, or fluorides generated from the use of solvents, inks, coatings, and cleaning nozzles.<\/p>\n\n\n\n
1.4 Environmental Protection and Auxiliary Facilities: Wet dust removal systems (such as exhaust gas scrubbing towers) discharge high-concentration pollutants containing viscous substances. This includes equipment and plant area floor washing water, domestic sewage, etc.<\/p>\n\n\n\n
2. Typical Characteristics of Wastewater<\/p>\n\n\n\n
2.1 High Suspended Solids (SS): Mainly from particles such as quartz sand and glass micron powder.<\/p>\n\n\n\n
2.2 High pH Value: Due to contact with alkaline substances such as soda ash, the pH often reaches 9\u201313.<\/p>\n\n\n\n
2.3 Fluoride Content: If fluoride-containing raw materials are used, fluoride ions may exceed the standard (national standard limit 10 mg\/L).<\/p>\n\n\n\n
2.4 Contains Heavy Metals or Organic Matter: Special glass (such as high borosilicate glass) may introduce lead, arsenic, etc.; deep-processing wastewater contains oil, silane coupling agents, etc.<\/p>","protected":false},"excerpt":{"rendered":"
Wastewater from glass factories mainly originates from multiple stages of the production process. According to authoritative publicly available information, it can be summarized into the following categories: 1. Main Wastewater Sources 1.1 Raw Material Preparation Stage: Wastewater from washing, screening, and rinsing raw materials such as quartz sand, soda ash, and feldspar. 1.2 Melting and…<\/p>","protected":false},"author":1,"featured_media":2047,"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,"_kad_post_classname":"","footnotes":""},"categories":[1,32],"tags":[900,667,902,901,903,899,897,896],"class_list":["post-2359","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-categorized","category-waste-water-treatment-news","tag-cooling-watewater","tag-environmental-protection","tag-generating-wastewater","tag-glass-wastewater","tag-high-suspended-solids","tag-quartz-sand","tag-screening","tag-wastewater-sources"],"_links":{"self":[{"href":"https:\/\/www.luckywwtp.com\/ru\/wp-json\/wp\/v2\/posts\/2359","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.luckywwtp.com\/ru\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.luckywwtp.com\/ru\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.luckywwtp.com\/ru\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.luckywwtp.com\/ru\/wp-json\/wp\/v2\/comments?post=2359"}],"version-history":[{"count":1,"href":"https:\/\/www.luckywwtp.com\/ru\/wp-json\/wp\/v2\/posts\/2359\/revisions"}],"predecessor-version":[{"id":2360,"href":"https:\/\/www.luckywwtp.com\/ru\/wp-json\/wp\/v2\/posts\/2359\/revisions\/2360"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.luckywwtp.com\/ru\/wp-json\/wp\/v2\/media\/2047"}],"wp:attachment":[{"href":"https:\/\/www.luckywwtp.com\/ru\/wp-json\/wp\/v2\/media?parent=2359"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.luckywwtp.com\/ru\/wp-json\/wp\/v2\/categories?post=2359"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.luckywwtp.com\/ru\/wp-json\/wp\/v2\/tags?post=2359"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}