{"id":1973,"date":"2026-06-16T16:35:11","date_gmt":"2026-06-16T16:35:11","guid":{"rendered":"http:\/\/mingyu.njfmz.com\/?post_type=case&#038;p=1973"},"modified":"2026-06-23T01:56:35","modified_gmt":"2026-06-23T01:56:35","slug":"%e8%bd%af%e6%b0%b4%e3%80%81%e7%ba%af%e6%b0%b4%e5%88%b6%e5%a4%87%e7%b3%bb%e7%bb%9f","status":"publish","type":"case","link":"https:\/\/www.mingyuhb.com\/en\/case\/%e8%bd%af%e6%b0%b4%e3%80%81%e7%ba%af%e6%b0%b4%e5%88%b6%e5%a4%87%e7%b3%bb%e7%bb%9f\/","title":{"rendered":"Coal Mine Wastewater Characteristics"},"content":{"rendered":"<p><strong>Characteristics of Coal Mine Wastewater:<\/strong><\/p>\n<p>High suspended solids and turbidity: Suspended solids primarily consist of coal fines and rock cuttings, with concentrations typically exceeding 200 mg\/L and in extreme cases reaching over 1,000 mg\/L.<\/p>\n<p>Multiple wastewater types: Coal mine wastewater can be classified into several categories, including mine water, coal preparation wastewater, and coal chemical wastewater.<\/p>\n<p>Highly variable organic pollutant levels: Organic content varies significantly across different wastewater types. Conventional mine water typically contains 150\u2013300 mg\/L of organic matter, while coal chemical wastewater can have COD levels ranging from several hundred to several thousand mg\/L.<\/p>\n<p>Presence of heavy metal ions: The wastewater contains heavy metals such as lead, cadmium, mercury, iron, and manganese.<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter\" src=\"http:\/\/mingyuhb.com\/static\/upload\/image\/20260107\/1767781590121330.png\" alt=\"\" width=\"1000\" height=\"1650\" \/><\/p>\n<p><img decoding=\"async\" class=\"aligncenter\" src=\"http:\/\/mingyuhb.com\/static\/upload\/image\/20260107\/1767781591168749.png\" alt=\"\" width=\"1000\" height=\"1507\" \/><\/p>\n<p><img decoding=\"async\" class=\"aligncenter\" src=\"http:\/\/mingyuhb.com\/static\/upload\/image\/20260107\/1767781599630697.png\" width=\"1000\" height=\"1595\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter\" src=\"http:\/\/mingyuhb.com\/static\/upload\/image\/20260107\/1767781599170402.png\" width=\"1000\" height=\"2113\" \/><\/p>\n<p>&nbsp;<\/p>","protected":false},"featured_media":2100,"parent":0,"menu_order":34,"template":"","format":"standard","categories":[9],"class_list":["post-1973","case","type-case","status-publish","format-standard","has-post-thumbnail","hentry","categories-treatment-coal-mine-wastewater"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.mingyuhb.com\/en\/wp-json\/wp\/v2\/case\/1973","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.mingyuhb.com\/en\/wp-json\/wp\/v2\/case"}],"about":[{"href":"https:\/\/www.mingyuhb.com\/en\/wp-json\/wp\/v2\/types\/case"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.mingyuhb.com\/en\/wp-json\/wp\/v2\/media\/2100"}],"wp:attachment":[{"href":"https:\/\/www.mingyuhb.com\/en\/wp-json\/wp\/v2\/media?parent=1973"}],"wp:term":[{"taxonomy":"categories","embeddable":true,"href":"https:\/\/www.mingyuhb.com\/en\/wp-json\/wp\/v2\/categories?post=1973"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}