Habibollah Younesi

ABSTRACT The excessive accumulation of nutrient (C, N, and P) discharge to surface water can pose serious ecological problems that affect the health of aquatic life and consequently that of human and animals. It is, therefore, necessary to remove these substances from wastewaters for reducing their harm to environments. A novel upflow aerobic/anoxic flocculated sludge bioreactor (UAASB) will be establish and apply as a single treatment unit for carbon, nitrogen and phosphorus removal. In this study, nutrients (C, N and P) removal efficiency in a time-based control UAASB reactor has studied. Analyze of nutrients removal efficiency were investigated from ۱- ﺩﺍﻧﺸﺠﻮﻱ ﺩﮐﺘﺮﺍﻱ ﮔﺮﻭﻩ ﻣﻬﻨﺪﺳﻲ ﻣﺤﻴﻂ ﺯﻳﺴﺖ، ﺩﺍﻧﺸﮑﺪﻩ ﻣﻨﺎﺑﻊ ﻃﺒﻴﻌﻲ، ﺩﺍﻧﺸﮕﺎﻩ ﺗﺮﺑﻴﺖ ﻣﺪﺭﺱ، ﻧﻮﺭ ۲- ﺩﺍﻧﺸﻴﺎﺭ ﮔﺮﻭﻩ ﻣﻬﻨﺪﺳﻲ ﻣﺤﻴﻂﺯﻳﺴﺖ، ﺩﺍﻧﺸﮑﺪﻩ ﻣﻨﺎﺑﻊ ﻃﺒﻴﻌﻲ، ﺩﺍﻧﺸﮕﺎﻩ ﺗﺮﺑﻴﺖ ﻣﺪﺭﺱ، ﻧﻮﺭ، (ﻧﻮﻳﺴﻨﺪﻩ hunesi@modares.ac.ir (۰۱۲۲) ۶۲۵۳۱۰۱-۳ (ﻣﺴﺌﻮﻝ ۳- ﺍﺳﺘﺎﺩ ﮔﺮﻭﻩ ﻣﻬﻨﺪﺳﻲ ﺷﻴﻤﻲ، ﺩﺍﻧﺸﮑﺪﻩ ﺷﻴﻤﻲ، ﺩﺍﻧﺸﮕﺎﻩ ﻣﺎﺯﻧﺪﺭﺍﻥ، ﺑﺎﺑﻞ ۴- ﺍﺳﺘﺎﺩﻳﺎﺭ ﮔﺮﻭﻩ ﺷﻴﻤﻲ ﮐﺎﺭﺑﺮﺩﻱ، ﺩﺍﻧﺸﮑﺪﻩ ﺷﻴﻤﻲ ﻭ ﻣﺮﮐﺰ ﺗﺤﻘﻴﻘﺎﺕ ﺁﺏ ﻭ ﻓﺎﺿﻼﺏ، ﺩﺍﻧﺸﮕﺎﻩ ﺭﺍﺯﻱ، ﮐﺮﻣﺎﻧﺸﺎﻩ ۵- ﻛﺎﺭﺷﻨﺎﺱ ﺁﺯﻣﺎﻳﺸﮕﺎﻩ ﺗﺤﻘﻴﻘﺎﺗﻲ ﻧﺎﻧﻮ ﻣﻮﺍﺩ ﻣﺰﻭﭘﺮﻭﺱ، ﺩﺍﻧﺸﻜﺪﻩ ﺷﻴﻤﻲ، ﺩﺍﻧﺸﮕﺎﻩ ﻋﻠﻢ ﻭ ﺻﺘﻌﺖ ﺍﻳﺮﺍﻥ، ﻧﺎﺭﻣﻚ، ﺗﻬﺮﺍﻥ ۶- ﺩﺍﻧﺸﺠﻮﻱ ﺩﻛﺘﺮﺍﻱ ﮔﺮﻭﻩ ﮔﻴﺎﻩ ﭘﺰﺷﻜﻲ، ﺩﺍﻧﺸﮕﺎﻩ ﻭﻟﻴﻌﺼﺮ، ﺭﻓﺴﻨﺠﺎﻥ 1. Ph.D Student of Environmental Eng., Faculty of Natural Resources, Tarbiat Modares University, Noor, Iran 2. Assoc. Prof. of Environmental Eng., Faculty of Natural Resources, Tarbiat Modares University, Noor, Iran (Corresponding Author) (+98 122) 6253101-3 hunesi@modares.ac.ir 3. Prof. of Chemical Engineering, Mazandaran, University, Babol, Iran 4. Assist. Prof. of Applied Chemistry, Faculty of Chemistry and Water and Wastewater Research Center (WWRC), Razi University, Kermanshah, Iran 5. Expert of Research Laboratory of Nanoporous Materials, Faculty of Chemistry, Iran University of Science and Technology, Tehran 6. Ph.D. Student of Plant Protection, Vali-e-asr University, Rafsanjan ﺷﻤﺎﺭﻩ ٢ ﺳﺎﻝ ١٣٩٣ ﺁﺏ ﻭ ﻓﺎﺿﻼﺏ  wastewater using optimization of factors and effects of variables: COD/N/P ratio and flow rate. Results of experiments showed that COD/N/P ratio 1000/250/2 and Q 7 L/h in HRT 6 h, F/M 0.054 kg COD/kg MLVSS.h and OLR 0.15 kg/m3 .h were desirable for removal of nutrients from wastewater in aerobic/anaerobic bioreactor. In these conditions SVI 53.12 mL/g, COD removal efficiency 86% and PO4 3- removal efficiency 97.5% were showed. According all results of responses for best nutrient removal, UAASB bioreactor is desirable for removal efficiency of C and P.

This study investigates the treatment of the distilleries vinasse using a hybrid process integrating ozone oxidation and granular activated carbons (GAC) in both batch and continuous operation mode. The batch-process studies have been carried out to optimize initial influent pH, GAC doses, the effect of the ozone (O3) and hydrogen peroxide (H2O2) concentrations on chemical oxygen demand (COD) and color removal of the distilleries vinasse. The continuous process was carried out on GAC and ozone treatment alone as well as the hybrid process comb both methods to investigate the synergism effectiveness of the two methods for distilleries vinasse COD reduction and color removal. In a continuous process, the Yan model described the experimental data better than the Thomas model. The efficiency of ozonation of the distilleries vinasse was more effective for color removal (74.4%) than COD removal (25%). O3/H2O2 process was not considerably more effective on COD and color removal. Moreover, ...

Streszczenie angielskie: Biological hydrogen production from synthesis gas by photosynthetic anaerobic bacterium, Rhodospirillum rubrum, was carried out in batch fermentation. The experiment was conducted at various initial pH of the medium using malate as carbon source in liquid media. The results indicated that the hydrogen production was drastically reduced at acidic and alkaline conditions, pH range of 3-5 and 11-12. It was found that Rhodospirillum rubrum was well grown on pH range of 6 to 9. R. rubrum was ...