\n Read more <\/a>\n <\/div>\n <\/div>\n\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n","protected":false},"excerpt":{"rendered":"Changes in the composition and load of wastewater entering treatment plants pose a challenge to maintaining stable
\noperation of biological reactors. A particularly sensitive process is nitrification, whose efficiency depends on several
\nfactors, including oxygen availability and the concentration of ammonium nitrogen in the raw wastewater. Traditional
\ncontrol systems, based on fixed setpoints, often fail to respond adequately to fluctuations in nitrogen load, which can
\nlead to reactor overloading or excessive energy consumption for aeration.
\nA solution is the so-called variable-setpoint control, which enables automatic adjustment of aeration system
\nparameters to the current demand. A key component of variable-setpoint control is on-line measurement of
\nammonium ion (NH4
\n+) concentration and, optionally, the measurement of wastewater flow\/nitrogen load at the
\nreactor inlet and outlet. In this control strategy, the oxygen concentration setpoint is not fixed over time but becomes
\na function of the current quality of biologically treated wastewater and, optionally, the biological reactor loading. The
\napplication of variable-setpoint control improves the stability of nitrogen removal processes while also reducing
\nenergy consumption and enhancing the quality of treated effluent.
\nMPWiK S.A. in Wroc\u0142aw is conducting tests of a proprietary aeration control system based on ammonium nitrogen
\nmonitoring, and this article presents the results of preliminary trials of the technology. At present, this approach
\nenables savings of up to 14% compared to a reference treatment line operating with constant oxygen concentration
\ncontrol. Current challenges include the algorithm\u2019s performance under very low nitrogen load conditions and
\nmaintaining an appropriate concentration of total nitrogen in the biologically treated effluent.<\/p>\n","protected":false},"featured_media":0,"parent":0,"menu_order":0,"template":"","meta":[],"tags":[5040,1019,3914,5041],"tematyka":[387],"class_list":["post-24220","artykul","type-artykul","status-publish","hentry","tag-aeration","tag-ammonium-nitrogen","tag-biological-wastewater-treatment","tag-variable-setpoint-control","tematyka-water-supply-and-sewage-system","has-post-title","has-post-date","has-post-category","has-post-tag","has-post-comment","has-post-author",""],"ptb_metabox":{"ptb_artykul_text_1":["NATALIA CHA\u0141UPKA","DARIA C\u0141APA","KAMIL JANIAK","MATEUSZ MUSZY\u0143SKI-HUHAJ\u0141O","STANIS\u0141AW MIODO\u0143SKI"],"ptb_artykul_text_2":"10.36 1 19\/1 5.2025.1 2.21","ptb_artykul_numer_miesi_cznika":"12\/2025 Instal pp.88-92","ptb_artykul_info_autor":"Natalia Cha\u0142upka, Daria C\u0142apa \u2012 Politechnika Wroc\u0142awska\r\ndr in\u017c. Kamil Janiak https:\/\/orcid.org\/0000-0001-5021-9084 \u2012 MPWiK S.A. we Wroc\u0142awiu, Politechnika Wroc\u0142awska, kamil.janiak@mpwik.wroc.pl\r\ndr in\u017c. Mateusz Muszy\u0144ski-Huhaj\u0142o https:\/\/orcid.org\/0000-0001-6639-8320, dr in\u017c. Stanis\u0142aw Miodo\u0144ski https:\/\/orcid.org\/0000-0002-3917-3772 \u2012 Politechnika Wroc\u0142awska\b\r\nCorresponding author: kamil.janiak@pwr.edu.pl","ptb_artykul_orcid":["0000-0001-5021-9084","0000-0001-6639-8320","0000-0002- 3917-3772"]},"ptb_taxonomy":{"post_tag":[{"term_id":5040,"name":"aeration","slug":"aeration","term_group":0,"term_taxonomy_id":5040,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":1019,"name":"ammonium nitrogen","slug":"ammonium-nitrogen","term_group":0,"term_taxonomy_id":1019,"taxonomy":"post_tag","description":"","parent":0,"count":2,"filter":"raw"},{"term_id":3914,"name":"biological wastewater treatment","slug":"biological-wastewater-treatment","term_group":0,"term_taxonomy_id":3914,"taxonomy":"post_tag","description":"","parent":0,"count":2,"filter":"raw"},{"term_id":5041,"name":"variable setpoint control","slug":"variable-setpoint-control","term_group":0,"term_taxonomy_id":5041,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"}],"tematyka":[{"term_id":387,"name":"Water supply and sewage system","slug":"water-supply-and-sewage-system","term_group":0,"term_taxonomy_id":387,"taxonomy":"tematyka","description":"","parent":0,"count":206,"filter":"raw"}]},"ptb_featured_image":null,"builder_content":" Read more <\/a>","_links":{"self":[{"href":"https:\/\/informacjainstal.com.pl\/en\/wp-json\/wp\/v2\/artykul\/24220","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/informacjainstal.com.pl\/en\/wp-json\/wp\/v2\/artykul"}],"about":[{"href":"https:\/\/informacjainstal.com.pl\/en\/wp-json\/wp\/v2\/types\/artykul"}],"wp:attachment":[{"href":"https:\/\/informacjainstal.com.pl\/en\/wp-json\/wp\/v2\/media?parent=24220"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/informacjainstal.com.pl\/en\/wp-json\/wp\/v2\/tags?post=24220"},{"taxonomy":"tematyka","embeddable":true,"href":"https:\/\/informacjainstal.com.pl\/en\/wp-json\/wp\/v2\/tematyka?post=24220"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}