Aged Refuse Filled Bioreactor Using Like a Biological Treatment for Sugar Mill Wastewater
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RESEARCH ARTICLE
Aged Refuse Filled Bioreactor Using Like a Biological Treatment for Sugar Mill Wastewater H. A. Na´jera-Aguilar1 • R. Mayorga-Santis2 • R. F. Gutie´rrez-Herna´ndez2 J. A. Araiza-Aguilar1 • R. I. Martı´nez-Salinas1 • C. M. Garcı´a-Lara1 • M. N. Rojas-Valencia3
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Received: 30 December 2019 / Accepted: 13 August 2020 Society for Sugar Research & Promotion 2020
Abstract The serious pollution problem that exists nowadays in aquatic environments has been caused, mainly, by intensive industrial activity. For this reason, this article presents the results obtained in the treatability tests of sugar mill wastewater, using an aged refuse filled bioreactor, (Ø = 0.2 m, h = 3.0 m, of PVC), which was fed under four hydraulic loads (50, 100, 150 and 200 L/m3 day), each of them for a period of 8 weeks. The efficiency of the system was evaluated by the removal of the chemical oxygen demand (COD) and color. The average values in the influent were 2473 ± 437 mg/L for COD and 1048 ± 287 Pt–Co for color. The highest COD removal (98.8%) was achieved with a hydraulic load of 100 L/ m3 day, generating an effluent with an average value of 26.8 mg COD/L. In the case of color, a removal of 84.2% was achieved. The results obtained show the evaluated system as an efficient, novel and friendly alternative in its operation, with minimum sludge and odors generation in the treatment of wastewater generated in the cane sugar extraction process.
& R. F. Gutie´rrez-Herna´ndez [email protected] 1
Ingenierı´a Ambiental, Universidad de Ciencias y Artes de Chiapas. Ciudad Universitaria, Lib. Nte. Pte. s/n, Col. Lajas, Maciel, C.P. 29000 Tuxtla Gutie´rrez, Chiapas, Mexico
2
Departamento de Ingenierı´a Quı´mica y Bioquı´mica, Tecnolo´gico Nacional de Me´xico-Instituto Tecnolo´gico de Tapachula, Km. 2 carretera a Pto Madero s/n, C.P. 30700 Tapachula, Chiapas, Mexico
3
Institute of Engineering, National Autonomous University of Mexico, Av. Universidad 3000, CDMX 04510 Mexico City, Mexico
Keywords Aged refuse Chemical oxygen demand and color removal Filled bioreactor Material from landfill Sugar industry wastewater
Introduction Sugarcane is one of the most important commercial crops worldwide. Mexico is located within the first six countries that export cane sugar, with the USA as one of its main markets (Bustos et al. 2014). According to the Agroindustrial Statistical Report of Sugar Cane (CANADESUCA 2017), the area harvested in Mexico during the 2016–2017 period was 777,078 ha, with a yield of 7.67 tons of sugar produced per ha; however, during harvest days, this activity can generate 45.9 m3/s of wastewater (CONAGUA 2006), therefore, considering the 175 harvest days reported for the 2016–2017 period, a volume of 694 9 106 m3 of wastewater was produced. In general, the sugar mill industry is considered to produce around 1000 L of wastewater per ton of processed sugarcane (Hampannavar and Shivayogimath 2010). This wastewater is characterized by presenting high organic loads measured as biochemical oxygen de
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