رویکردهای نوین در مهندسی آب و محیط‌زیست
نشریه علمی

Enhancing Biogas Production and Toxicity Reduction of Sugarcane Vinasse : A Study Related to an Alcohol Plant , the Northern Coast of the Persian Gulf

مقالات آماده انتشار

نوع مقاله : مقاله پژوهشی

نویسندگان

محمدعلی صالحی رعنانی 1
اشکان غفوری 2
نعمت الله جعفرزاده حقیقی فرد 3
افشین تکدستان 4

1 گروه مهندسی مکانیک، واحد دزفول، دانشگاه آزاد اسلامی، دزفول،ایران

2 گروه مهندسی مکانیک، واحد اهواز، دانشگاه آزاد اسلامی، اهواز، ایران

3 مرکز تحقیقات سم‌شناسی، پژوهشکده علوم پایه پزشکی، دانشگاه علوم پزشکی جندی‌شاپور اهواز، اهواز، ایران

4 ۱- مرکز تحقیقات فناوری‌های محیطی، پژوهشکده علوم پایه پزشکی، دانشگاه علوم پزشکی جندی‌شاپور اهواز، اهواز، ایران ۲- گروه مهندسی

10.22034/nawee.2026.590815.1249
چکیده
This experimental-intervention study was conducted at a pilot scale in 2022 to optimize the biogas production process from sugarcane vinasse specifically focusing on reducing the inhibitory effects of toxic compounds and optimizing operational parameters. The experiments were carried out based on the Biochemical Methane Potential (BMP) method at the Faculty of Agriculture, Ferdowsi University of Mashhad, Iran. The effect of six variables including temperature (37 and 55 °C), residence time (14 and 21 and 28 days), C/N ratio (1:20, 1:25, and 1:30), pH (6, 7, and 8), hydrogen peroxide concentration (2, 3 and 5 mg/L) and initial vinasse loading volume (5000 and 10000 ml) was investigated. Response surface methodology (RSM) and central composite design (CCD) were used to design the experiments. The amount of biogas produced in the process was measured based on the gas chromatography (GC) method. The results showed that the optimal conditions for biogas production were as follows: temperature 37 °C (mesophilic), time: 21 days, pH equal to 7, C/N ratio equal to one to 25, H2O2 amount equal to 3 g/L and loading volume 10000 ml. Under these conditions, the maximum biogas production efficiency reached 43.2%. Using a hydrogen peroxide concentration of 3 mg/L under these conditions helped to reduce the inhibitory effects of toxic compounds present in the vinasse and facilitated the biogas production process. These results indicate that the addition of hydrogen peroxide can be considered an effective strategy to reduce toxicity and increase the efficiency of the biogas production process.

کلیدواژه‌ها

Sugarcane vinasse
Biogas technology
energy conversion
Operational parameters
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رویکردهای نوین در مهندسی آب و محیط‌زیست

مقالات آماده انتشار، پذیرفته شده
انتشار آنلاین از 05 آبان 1405

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