Survey of Combined Hydrogen-Methane Production in Anaerobic Baffled Reactor (ABR)

2012 ◽  
Vol 550-553 ◽  
pp. 3180-3183 ◽  
Author(s):  
Guo Chen Zheng ◽  
Jian Zheng Li ◽  
Wei Li ◽  
Zhu Jun Tian ◽  
Shuang Shi Dong ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Phase Separation ◽  
Environmental Pollution ◽  
Methane Production ◽  
Biological Treatment ◽  
Methane Fermentation ◽  
Anaerobic Reactor ◽  
Fermentation System ◽  
Anaerobic Baffled Reactor ◽  
Stage Process

Anaerobic fermentative technology is an important route to solving environmental pollution and resources problems. Combined hydrogen and methane production in a two-stage process is a concept which has been developed in recent years Anaerobic biological treatment organic wastewater can produce large amounts of hydrogen and methane，which can be used as energy carrier. At present，the research focusing on the adjustment of fermentation hydrogen-methane production has been conducted. Furthermore, the simultaneous hydrogen-methane production was tested and optimized. However, it lacked combined hydrogen-methane production in an anaerobic reactor in literature so far. Based on preview experiment, the paper studied the simultaneous hydrogen-methane fermentation in an anaerobic baffled reactor (ABR) system. ABR has the advantage of biomass phase separation and integration of acidogenic and methanogenic processes to simultaneously conduct hydrogen-methane production during wastewater treatment. Through deep biohydrogen production, it can enhance the activity of hydrogen-producing acetogens (HPA) and the efficiencies of the combined hydrogen-methane fermentation system. It showed to enhance the activity of HPA was the key to the combined hydrogen-methane production.

scholarly journals Study of tofu wastewater treatment using anaerobic baffled reactor: laboratory scale

2021 ◽  
Vol 894 (1) ◽  
pp. 012017
Author(s):  
H Trihidayanti ◽  
R Ratnaningsih ◽  
B Iswanto
Keyword(s):  
Wastewater Treatment ◽  
Environmental Pollution ◽  
Biological Treatment ◽  
Liquid Waste ◽  
Quality Standard ◽  
Optimum Time ◽  
Anaerobic Reactor ◽  
Detention Time ◽  
Anaerobic Baffled Reactor ◽  
Environment Regulation

Abstract One of the foods favorites by Indonesian people is tofu. In the process of making tofu, it produces wastewater. The tofu wastewater must be treated first to reduce environmental pollution. To treat the liquid waste, it is using biological treatment by an anaerobic baffled reactor with bio-ball. The purpose of this study was to determine the optimum time at 75% tofu wastewater concentration. The detention time used in this study was 12 hours, 24 hours, 36 hours and 48 hours. Seeding takes time about 45 days, with the obtained VSS was 5550 mg/L. Furthermore, acclimatization in the reactor takes about 30 days, with an efficiency of removing COD of 86.3%. The results obtained that at 12 hours of detention, there is a COD allowance of 79.8%, 24 hours of detention time there is a COD allowance of 85.4%, 36 hours of detention time 86.3%, and 48 hours of detention time 88.4 %. It shows that the optimum detention time in this anaerobic reactor is 48 hours. However, the COD level was 765.3 mg/L is still slightly above the quality standard according to the Minister of Environment Regulation No.5 2014, which is the maximum COD level of 300 mg/L.

Research on the Start-Up Effect of Two-Phase Anaerobic Baffled Reactor

2013 ◽  
Vol 448-453 ◽  
pp. 600-603
Author(s):  
Ling Jing ◽  
Xin Xia Wang
Keyword(s):  
Wastewater Treatment ◽  
Ph Value ◽  
Removal Rate ◽  
Limiting Factors ◽  
Small Cities ◽  
Two Phase ◽  
Anaerobic Reactor ◽  
Anaerobic Baffled Reactor ◽  
Low Concentration ◽  
Start Up

Aiming at the fact that the low concentration sewage in small cities, this paper presents Two-phase Anaerobic Baffled Reactor (TAABR) for living wastewater treatment, importantly, it designs and researches Two-phase Anaerobic Baffled Reactor and its advantages, designs a trial project according to the characteristics of the reactor equip. The experiment uses the method that by shortening HRT to raise the load to start and analyses the operating results during startup as follows: 1. 53 days later anaerobic reactor start-up successes.2. When the load is 0.5kgCOD/m3.d, the removal rate of COD is more than 80%. 3. PH value is not the main limiting factors during start up in the reactor and there is basically no danger of excessive acidification.

Research on the Experiment Effect of Two-Phase Anaerobic Baffled Reactor Treatment Craft

2013 ◽  
Vol 781-784 ◽  
pp. 1945-1949
Author(s):  
Ling Jing ◽  
Xin Xia Wang
Keyword(s):  
Wastewater Treatment ◽  
Total Nitrogen ◽  
Experiment Research ◽  
Two Phase ◽  
System Effect ◽  
Anaerobic Reactor ◽  
Anaerobic Baffled Reactor ◽  
Measurement Results ◽  
Successful Launch ◽  
Running Cost

This paper presented Low investment and low running cost Two-phase Anaerobic Baffle Treatment Craft for living wastewater treatment, it designed Two-phase anaerobic reactor and carried out a successful launch and Experiment research. The results are as follows: 1. The experiment uses the start method that by shortening HRT to raise the load, after 53 days completes experiment start.2. By the analysis of HRT to the system effect, suggest that the best HRT is 6 h when the craft processes sewage. 3. The system clean rates of the total nitrogen and total phosphoric are respectively 21.05% and 20.1%.4. The temperature has an influence on clean effect of the system, when the temperature descends from 20 °C to 10 °C, system clean rate of average COD descends from 87.1% to 52.4%. 5. Reactor VFA and PH measurement results express that the craft could circulate stably and efficiently.

scholarly journals Methane Fermentation System for Swine Wastewater Treatment

1988 ◽  
Vol 59 (8) ◽  
pp. 675-681
Author(s):  
Toshinori KAMEOKA ◽  
Youichi INNO ◽  
Michio SAKIMOTO
Keyword(s):  
Wastewater Treatment ◽  
Swine Wastewater ◽  
Methane Fermentation ◽  
Fermentation System

Изучение отклика дегидрогеназной активности ила на изменение технологических параметров работы аэротенка

2020 ◽  
Author(s):  
N. Zaletova ◽  
S. Zaletov
Keyword(s):  
Wastewater Treatment ◽  
Dehydrogenase Activity ◽  
Biological Treatment ◽  
Biological Process ◽  
Organic Load ◽  
Treatment Processes ◽  
Mode Of Operation ◽  
Concentrated Solution ◽  
Available Information ◽  
Complicated Mechanism

Биологический метод очистки сточных вод представляет собой сложный многокомпонентный процесс, ключевой составляющей которого является работа ферментной системы. Известно, что одним из важнейших ферментов, обеспечивающих биологический процесс, являются дегидрогеназы. Полностью сложнейший механизм действия ферментов до конца пока не раскрыт, однако в практике контроля процессов биологической очистки используется показатель дегидрогеназной активности ила. Результаты исследований позволили дополнить имеющуюся информацию фактическими данными о взаимообусловленности уровня дегидрогеназной активности ила и показателей отдельных технологических параметров биологической очистки. Показано, что режим работы аэротенков (нагрузка на ил, доза активного ила и др.) и величина показателей исходной дегидрогеназной активности и дегидрогеназной активности этого же образца ила со слабо концентрированным раствором (ДАИН2О) связаны между собой и зависят от нагрузки на ил по органическим веществам. Полученные результаты исследования могут быть использованы для контроля биологического процесса очистки сточных вод.The biological method of wastewater treatment is a comprehensive multicomponent process the activities of the enzyme system being the key component of it. It is known that dehydrogenases have been one of the most important enzymes the ensure the biological process. The complicated mechanism of the action of enzymes has not been fully described so far however, in the practice of monitoring biological treatment processes, an indicator of the dehydrogenase activity of sludge is used. The research results provided for supplementing the available information with actual data on the interdependence of the level of dehydrogenase activity of sludge and indicators of individual process parameters of biological treatment. It was shown that the mode of operation of aeration tanks (organic matter load on sludge, dose of activated sludge, etc.) and the values of the initial dehydrogenase activity and dehydrogenase activity of the same sludge sample with weakly concentrated solution (DASН2О) are interconnected and depend on the organic load on sludge. The results of the study can be used to control the biological process of wastewater treatment.The biological method of wastewater treatment is a comprehensive multicomponent process the activities of the enzyme system being the key component of it. It is known that dehydrogenases have been one of the most important enzymes the ensure the biological process. The complicated mechanism of the action of enzymes has not been fully described so far however, in the practice of monitoring biological treatment processes, an indicator of the dehydrogenase activity of sludge is used. The research results provided for supplementing the available information with actual data on the interdependence of the level of dehydrogenase activity of sludge and indicators of individual process parameters of biological treatment. It was shown that the mode of operation of aeration tanks (organic matter load on sludge, dose of activated sludge, etc.) and the values of the initial dehydrogenase activity and dehydrogenase activity of the same sludge sample with weakly concentrated solution (DASН2О) are interconnected and depend on the organic load on sludge. The results of the study can be used to control the biological process of wastewater treatment.

Possibilities of joint treatment of spent sugar beet pulp and waste water from a sugar factory

2012 ◽  
pp. 756-761 ◽  
Author(s):  
Miroslav Hutnan ◽  
Štefan Tóth ◽  
Igor Bodík ◽  
Nina Kolesárová ◽  
Michal Lazor ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Sugar Beet ◽  
Pilot Plant ◽  
Biogas Production ◽  
Sugar Beet Pulp ◽  
Spare Capacity ◽  
Anaerobic Reactor ◽  
Sugar Factory ◽  
Beet Pulp ◽  
Joint Treatment

The possibility of joint treatment of spent sugar beet pulp and wastewater from a sugar factory was studied in this work. Works focused on processing of spent sugar beet pulp separately or together with other substrates can be found in the literature. In the case of some sugar factories, which have spare capacity in the anaerobic reactor on an anaerobic-aerobic wastewater treatment plant, joint processing of spent sugar beet pulp and wastewater from the sugar factory might be an interesting option. The results of the operation of a pilot plant of an anaerobic reactor with a capacity of 3.5 m3 are discussed. Operation of the pilot plant confirmed the possibility of cofermentation of these materials. The organic loading rate achieved in the anaerobic reactor was higher than 6 kg/(m3·d) (COD), while more than half of the load was provided by spent sugar beet pulp. The addition of sugar beet pulp decreased the concentration of ammonia nitrogen in the anaerobic reactor and it was even necessary to add nitrogen. However, the nitrogen content in sludge water depends on the C:N ratio in the processed sugar beet pulp, therefore this knowledge cannot be generalized. About 1.5 to 2-fold biogas production can be expected from the cofermentation of wastewater with sugar beet pulp in an anaerobic reactor, compared with the biogas production from just wastewater treatment.

Use of chemical upgrading (CU) in Hungary and Slovakia

1994 ◽  
Vol 30 (5) ◽  
pp. 87-95 ◽  
Author(s):  
Susan E. Murcott ◽  
Donald R. F. Harleman
Keyword(s):  
Wastewater Treatment ◽  
Biological Treatment ◽  
Treatment Plant ◽  
Domestic Sewage ◽  
Metal Salts ◽  
Plant Performance ◽  
Eastern European ◽  
Low Doses ◽  
The Past ◽  
Treatment Technologies

In the past decade, the development of polymers and new chemical technologies has opened the way to using low doses of chemicals in wastewater treatment. “Chemical upgrading” (CU) is defined in this paper as an application of these chemical technologies to upgrade overloaded treatment systems (typically consisting of conventional primary plus biological treatment) in Central and Eastern European (CEE) countries. Although some of the chemical treatment technologies are proven ones in North America, Scandinavia, and Germany, a host of factors, for example, the variations in composition and degree of pollution, the type of technologies in use, the type and mix of industrial and domestic sewage, and the amount of surface water, had meant that the viability of using CU in CEE countries was unknown. This report describes the first jar tests of CU conducted during the summer of 1993. The experiments show CU's ability to improve wastewater treatment plant performance and to potentially assist in the significant problem of overloaded treatment plants. Increased removal of BOD, TSS, and P in the primary stage of treatment is obtained at overflow rates above 1.5 m/h, using reasonably priced, local sources of metal salts in concentrations of 25 to 50 mg/l without polymers.

Evaluation of Small Wastewater Treatment Plants in the County of Århus – Denmark

1993 ◽  
Vol 28 (10) ◽  
pp. 33-41
Author(s):  
Jes la Cour Jansen ◽  
Bodil Mose Pedersen ◽  
Erik Moldt
Keyword(s):  
Wastewater Treatment ◽  
Constructed Wetlands ◽  
Biological Treatment ◽  
Wastewater Treatment Plants ◽  
Chemical Precipitation ◽  
Common Type ◽  
Treatment Efficiency ◽  
Effluent Quality ◽  
Different Types

Influent and effluent data from about 120 small wastewater treatment plants (100 - 2000 PE) have been collected and processed. Seven different types of plants are represented. The effluent quality and the treatment efficiency have been evaluated. The most common type of plant is mechanical/biological treatment plants. Some of them are nitrifying and some are also extended for chemical precipitation of phosphorus. Constructed wetlands and biological sandfilters are also represented among the small wastewater treatment plants.

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