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The bacterial strain was identified as <jats:italic>Bacillus licheniformis<\/jats:italic> by 16S rRNA gene sequencing. The isolate removed up to 1\u00a0g L<jats:sup>\u22121<\/jats:sup> potassium cyanide, 3\u00a0g L<jats:sup>\u22121<\/jats:sup> benzonitrile, and 1\u00a0g L<jats:sup>\u22121<\/jats:sup> sodium salicylate when incubated as 10% v\/v in MSM at 30\u00a0\u2103. However, it failed to degrade potassium thiocyanate at all tested concentrations. The microalgal isolate was identified by electron microscopy as a strain of <jats:italic>Chlorella spp<\/jats:italic>.. Algal toxicity was tested by incubating the microalgae as 6% v\/v in MSM containing 2\u00a0g L<jats:sup>\u2212\u00a01<\/jats:sup> NaHCO<jats:sub>3<\/jats:sub> with increasing concentrations of the pollutants. Results showed that 0.05\u00a0g L<jats:sup>\u22121<\/jats:sup> KCN, 1.5\u00a0g L<jats:sup>\u22121<\/jats:sup> benzonitrile, 5\u00a0g L\u00a0<jats:sup>\u22121<\/jats:sup> KSCN, and 5\u00a0g L<jats:sup>\u22121<\/jats:sup> sodium salicylate inhibited 93%, 96%, 75%, and 21% of algal growth, respectively. In a continuous stirred photobioreactor, the bacterial-microalgal microcosm detoxified synthetic wastewater containing 0.2\u00a0g L<jats:sup>\u22121<\/jats:sup> KCN, 0.1\u00a0g L<jats:sup>\u22121<\/jats:sup> benzonitrile, and 0.5\u00a0g L<jats:sup>\u22121<\/jats:sup> sodium salicylate in 3.5\u00a0days of hydraulic retention time. System failure was recorded when the KCN concentration was increased to 0.25\u00a0g L<jats:sup>\u22121<\/jats:sup>. The effluent had no inhibitory effect on the germination of <jats:italic>Lepidium sativum<\/jats:italic> seeds in phytotoxicity testing. Temperature, pH, and chitosan effects were assessed on the algal\/bacterial settleability. Statistical analysis showed no significant difference between the tested parameters. The microcosm represents a potential candidate for the treatment of industrial wastewater containing cyanide compounds.<\/jats:p>","DOI":"10.1007\/s11274-024-04230-5","type":"journal-article","created":{"date-parts":[[2025,1,9]],"date-time":"2025-01-09T01:33:25Z","timestamp":1736386405000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Algal\u2013bacterial bioremediation of cyanide-containing wastewater in a continuous stirred photobioreactor"],"prefix":"10.1007","volume":"41","author":[{"given":"Mona F.","family":"AbdelMageed","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6508-7536","authenticated-orcid":false,"given":"Marwa T.","family":"ElRakaiby","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2025,1,9]]},"reference":[{"key":"4230_CR1","doi-asserted-by":"publisher","first-page":"2353","DOI":"10.1007\/s11069-021-05040-w","volume":"110","author":"I Abd-Elaty","year":"2022","unstructured":"Abd-Elaty I, Kuriqi A, Shahawy AE (2022) Environmental rethinking of wastewater drains to manage environmental pollution and alleviate water scarcity. 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