{"id":2972,"date":"2019-07-08T15:16:44","date_gmt":"2019-07-08T12:16:44","guid":{"rendered":"http:\/\/www.finnishwaterforum.fi\/wp\/en\/2019\/07\/08\/wastewater-to-energy-fertilizers-and-water-re-use-2\/"},"modified":"2020-08-25T11:05:11","modified_gmt":"2020-08-25T08:05:11","slug":"wastewater-to-energy-fertilizers-and-water-re-use-2","status":"publish","type":"post","link":"https:\/\/www.finnishwaterforum.fi\/wp\/en\/2019\/07\/08\/wastewater-to-energy-fertilizers-and-water-re-use-2\/","title":{"rendered":"Wastewater to energy, fertilizers and water re-use"},"content":{"rendered":"\n<p class=\"has-very-dark-gray-color has-text-color\"><strong>In the beginning of 1900s, many of the lakes and rivers in Finland were severely polluted by industries and municipalities. After 1970s, technologies, practices and legislation rapidly<\/strong> <strong>developed to handle industrial and municipal wastewater in an efficient and effective manner. Today, the sector is developing towards circular economy and  resource recovery in terms of energy, nutrients and clean water. <\/strong>  <\/p>\n\n\n\n<div class=\"wp-block-columns has-2-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h4 class=\"wp-block-heading\">Wastewater treatment plants in Finland<\/h4>\n\n\n\n<ul class=\"has-text-color has-very-dark-gray-color wp-block-list\"><li> 540 WWTPs (PE &gt; 50), mostly municipally owned<\/li><li>Treatment requirements set in environmental permits<\/li><li>Mixed tariffs (flat fee + volume fee + connecting fee)<\/li><li>Full cost recovery (O&amp;M + investments) <\/li><\/ul>\n\n\n\n<ul class=\"has-text-color has-very-dark-gray-color wp-block-list\"><li>Average BOD removal   <strong>97,8 % <\/strong>(developing economies: 60 %)<\/li><li>Average phosphorus removal   <strong>96,2 % <\/strong>(developing economies: 50 %)<\/li><\/ul>\n\n\n\n<p><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"960\" height=\"608\" src=\"http:\/\/www.finnishwaterforum.fi\/wp\/fi\/wp-content\/uploads\/sites\/7\/2019\/07\/PoriWWTP_logolla.jpg\" alt=\"\" class=\"wp-image-2300\" srcset=\"https:\/\/www.finnishwaterforum.fi\/wp\/en\/wp-content\/uploads\/sites\/6\/2019\/07\/PoriWWTP_logolla.jpg 960w, https:\/\/www.finnishwaterforum.fi\/wp\/en\/wp-content\/uploads\/sites\/6\/2019\/07\/PoriWWTP_logolla.jpg 300w, https:\/\/www.finnishwaterforum.fi\/wp\/en\/wp-content\/uploads\/sites\/6\/2019\/07\/PoriWWTP_logolla.jpg 768w\" sizes=\"auto, (max-width: 960px) 100vw, 960px\" \/><\/figure>\n<\/div>\n<\/div>\n\n\n\n<p class=\"has-text-align-left has-very-dark-gray-color has-text-color\">Most of the WWTPs in Finland utilize a primary treatment for solids removal, activated sludge process for phosphorus and nitrogen removal and tertiary treatment with activated carbon or UV disinfection.<\/p>\n\n\n\n<p class=\"has-very-dark-gray-color has-text-color\"><strong>Membrane bioreactor<\/strong> (MBR) process enables even more efficient treatment with less  space requirements for different process steps. Steady high quality effluent water can be re-used for many purposes and even meets the criteria for drinking water quality. Produced sludge can be converted into sustainable fertilizers and renewable energy, allowing efficient recovery of valuable resources.<\/p>\n\n\n\n<div class=\"wp-block-media-text alignfull is-stacked-on-mobile\"><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"791\" height=\"540\" src=\"http:\/\/www.finnishwaterforum.fi\/wp\/fi\/wp-content\/uploads\/sites\/7\/2019\/07\/kuva-6.png\" alt=\"\" class=\"wp-image-2495\" srcset=\"https:\/\/www.finnishwaterforum.fi\/wp\/en\/wp-content\/uploads\/sites\/6\/2019\/07\/kuva-6.png 791w, https:\/\/www.finnishwaterforum.fi\/wp\/en\/wp-content\/uploads\/sites\/6\/2019\/07\/kuva-6.png 300w, https:\/\/www.finnishwaterforum.fi\/wp\/en\/wp-content\/uploads\/sites\/6\/2019\/07\/kuva-6.png 768w\" sizes=\"auto, (max-width: 791px) 100vw, 791px\" \/><\/figure><div class=\"wp-block-media-text__content\">\n<h4 class=\"wp-block-heading\">Mets\u00e4-Sairila WWTP \u2013 circular economy is the future<\/h4>\n\n\n\n<p class=\"has-very-dark-gray-color has-text-color\">A full MBR plant is being built to Mikkeli to serve as a platform for developing future circular economy solutions. Treatment efficiency of the plant will exceed the requirements set in the environmental permit. High-quality effluent enables water re-use for different purposes, e.g. cooling and fire extinction. Plant will be operational in 2020.<\/p>\n\n\n\n<p><a href=\"https:\/\/www.youtube.com\/watch?v=XgJzUyX0rro\"><span style=\"text-decoration: underline;\">Learn more<\/span><\/a><\/p>\n<\/div><\/div>\n\n\n\n<h4 class=\"has-text-align-center wp-block-heading\">Finnish water expertise at your service<\/h4>\n\n\n\n<p class=\"has-text-align-center has-very-dark-gray-color has-text-color\">FWF members provide high-level expertise for comprehensive wastewater treatment solutions. <a href=\"http:\/\/www.finnishwaterforum.fi\/wp\/fi\/contact\/\"><span style=\"text-decoration: underline;\">Contact us<\/span><\/a> to learn more about Finnish experiences.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the beginning of 1900s, many of the lakes and rivers in Finland were severely polluted by industries and municipalities. After 1970s, technologies, practices and legislation rapidly developed to handle 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