{"id":9370,"date":"2024-05-12T12:17:26","date_gmt":"2024-05-12T06:17:26","guid":{"rendered":"https:\/\/itn.buet.ac.bd\/web\/?post_type=publication&p=9370"},"modified":"2025-03-12T12:21:47","modified_gmt":"2025-03-12T06:21:47","slug":"bioenergy-producing-two-stage-septic-tank-and-floating-wetland-for-onsite-wastewater-treatment-circuit-connection-and-external-aeration","status":"publish","type":"publication","link":"https:\/\/itn.buet.ac.bd\/web\/publications\/bioenergy-producing-two-stage-septic-tank-and-floating-wetland-for-onsite-wastewater-treatment-circuit-connection-and-external-aeration\/","title":{"rendered":"Bioenergy-producing two-stage septic tank and floating wetland for onsite wastewater treatment: Circuit connection and external aeration"},"content":{"rendered":"

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Abstract<\/strong><\/h5>\n

This study designed a two-stage, electrode-integrated septic tank-floating wetland system and assessed their pollutant removal performances under variable operational conditions. The two-stage system achieved mean organic, nitrogen, phosphorus, and coliform removal percentages of 99, 78, 99, and 97%, respectively, throughout the experimental run. The mean metals (chromium, cadmium, nickel, copper, zinc, lead, iron, and manganese) removal percentages ranged between 81 and 98%. Accumulated sludge, filler media, and the hanging root mass contributed to pollutant removals by supporting physicochemical and biological pathways. The mean effluent organic concentration and coliform number across the two-stage system were 20 mg\/L and 1682 CFU\/100 mL, respectively, during the closed-circuit protocol, which was beneath the open-circuit-based performance profiles, i.e., 32 mg\/L and 2860 CFU\/100 mL, respectively. Effluent organic, nitrogen, phosphorus , metals, and coliform number ranges across the two-stage system were 9-17 mg\/L, 13-24 mg\/L, 1-1.5 mg\/L, 0.001-0.2 mg\/L, and 1410-2270 CFU\/100 mL, respectively during intermittent and continuous aeration periods. The air supply rate differences influenced pollutant removal depending on the associated removal mechanisms. The non-aeration phase produced higher effluent pollutant concentrations than the aeration periods-based profiles. The overall mean power density production of the septic tank ranged between 107 and 596 mW\/m 3 ; 110 and 355 mW\/m 3 with the floating wetland. The bioenergy production capacity of the septic tank was positively correlated to external air supply rates. This study demonstrates the potential application of the novel bioenergy-producing septic tank-floating wetland system for wastewater treatment in decentralized areas.<\/p>\n

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This study demonstrates the potential application of the novel bioenergy-producing septic tank-floating wetland system for wastewater treatment in decentralized areas.<\/p>\n","protected":false},"author":4,"featured_media":9372,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":""},"yaer":[342],"auther":[],"language":[],"pub_tag":[],"publications_cat":[63],"class_list":["post-9370","publication","type-publication","status-publish","has-post-thumbnail","hentry","yaer-342","publications_cat-research-paper"],"acf":[],"_links":{"self":[{"href":"https:\/\/itn.buet.ac.bd\/web\/wp-json\/wp\/v2\/publication\/9370","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/itn.buet.ac.bd\/web\/wp-json\/wp\/v2\/publication"}],"about":[{"href":"https:\/\/itn.buet.ac.bd\/web\/wp-json\/wp\/v2\/types\/publication"}],"author":[{"embeddable":true,"href":"https:\/\/itn.buet.ac.bd\/web\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/itn.buet.ac.bd\/web\/wp-json\/wp\/v2\/comments?post=9370"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/itn.buet.ac.bd\/web\/wp-json\/wp\/v2\/media\/9372"}],"wp:attachment":[{"href":"https:\/\/itn.buet.ac.bd\/web\/wp-json\/wp\/v2\/media?parent=9370"}],"wp:term":[{"taxonomy":"yaer","embeddable":true,"href":"https:\/\/itn.buet.ac.bd\/web\/wp-json\/wp\/v2\/yaer?post=9370"},{"taxonomy":"auther","embeddable":true,"href":"https:\/\/itn.buet.ac.bd\/web\/wp-json\/wp\/v2\/auther?post=9370"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/itn.buet.ac.bd\/web\/wp-json\/wp\/v2\/language?post=9370"},{"taxonomy":"pub_tag","embeddable":true,"href":"https:\/\/itn.buet.ac.bd\/web\/wp-json\/wp\/v2\/pub_tag?post=9370"},{"taxonomy":"publications_cat","embeddable":true,"href":"https:\/\/itn.buet.ac.bd\/web\/wp-json\/wp\/v2\/publications_cat?post=9370"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}