检索结果-南通市图书馆

Anaerobic Co-Digestion of Fish Processing Waste with Cow Manure and Waste of Market (Rests of Fruits and Vegetables): A Lab Scale batch test

引用

Journal of Sustainable Bioenergy Systems 2021年第1期11卷 45-59页

作者： Ndèye Ndickou Kébé Christiane Rieker Papa Abdoulaye Fall Djicknoum Diouf Diène Ndiaye Thomas Mockenhaupt Patrick Beuel Jamile Bursche Laboratory of Electronics Computer Science Telecommunications and Renewable Energy Gaston Berger University Saint-Louis Senegal CIRE (Cologne Institute for Renewable Energy) Bioenergy University of Apllied Sciences of Cologne TH K&#246 ln Cologne Germany Dakar Senegal

The aim of this work was to use fish processing waste (FW) as main substrate for anaerobic digestion. To enhance the biogas production of FW, co-digestion was done with two other substrates: cow dung (CD) and waste of market (MW). Batch test was carried out in an 1 L glass digester in a temperature controlled chamber at 38°C. The following mixtures were carried out: FW with CD respectively at different ratios 100:0% (A), 80:20% (B) and 60:40% (C);FW with MW at the following ratio 80:20% (D);FW with CD and MW respectively at these ratios 80:10:10% (F) and 60:20:20% (G). The biogas produced was measured using a milligas counter® and the volume of gas was recorded. The gas composition was determined using gas chromatography. With a pH stable for raw substrates and mixtures, TS and VS (%TS) contents for FW were respectively 31.01% and 91.55%. Between 3 to 13 days of experimentation, the highest flow rate was observed. The percentage of methane was more important for mixtures B and D, 61% and 59% respectively. pH and VOA/TIC were stable at the end of the batch test for all mixtures, meaning that the organic matter was already well digested. The highest values of Volatile Solid Removal (VSR) were found for mixtures C, D, F and G. Therefore, the promising mixtures for next experimentations in large scale are B and D.

关键词： Fish Waste batch test Co-Digestion Flow Rate Organic Matter

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Process for the Biological Removal of Fe (II) from Reconstituted Waters on a Support of Filter Material with Coated Jujube Seeds

引用

Journal of Geoscience and Environment Protection 2022年第12期10卷 65-76页

作者： Mamadou Faye Falilou Mbacké Sambe Alpha Ousmane Toure Mouhamed Ndoye Codou Guèye Mar Diop Water Energy Environment and Industrial Processes Laboratory Ecole Supérieure Polytechnique (ESP) Dakar Senegal Cheikh Anta Diop University Dakar Senegal

Three beakers for removing Fe (II) in reconstituted water (doped with FeSO4) were built and tested. Given the set operating conditions ([O2] > 4 mg·L-1, Patm = 1.013 bar, T = 25°C ± 1°C and [Fe2+]0 = 0.5 to 2 mg·L-1), removal of iron was caused by biological and possibly physical and chemical oxidation because there is a quantity of free oxygen in the medium. The extent of each type of oxidation has not been evaluated as it specifically studies the biological degradation of iron in these beaker tests by setting the operating conditions (pH > 6.5, dissolved oxygen from 0 to 8 mg·L-1, Redox Potential from 100 to 400 mV). The experimental studies focused particularly on the measurements of maximum wavelength, conversion efficiencies from Fe (II) to Fe (III), the effect of the Fe (II) concentration, the influence of pH, the action of the temperature of the prepared solutions and the effect of O2 concentration under specified operating conditions. It noticed precipitated amounts of iron deposited at the bottom of the beakers. Thus, the low concentrations of Fe (II) detected in the influent after the biological oxidation operation could be attributed to microorganisms that consume iron as a substrate.

关键词： Biofilm batch test Biological Oxidation Iron Removal Beaker Doped Water

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Separation of indium(Ⅲ), gallium(Ⅲ), and zinc(Ⅱ) with Levextrel resin containing di(2-ethylhexyl) phosphoric acid (CL-P204): Part Ⅱ. Mechanism and kinetics of adsorbing indium(Ⅲ)

引用

Rare Metals 2004年第1期23卷 1-5页

作者： LIUJunshen ZHOUBaoxue CAIChunguang CAIJun CAIWeimin SchoolofEnvironmentalScienceandEngineering.ShanghaiJiaotongUniversity.Shanghai200240 China／SchoolofChemistryandmaterialsScience.YantaiNormalUniversity.Yantai264025 China SchoolofEnvironmentalScienceandEngineering ShanghaiJiaotongUniversityShanghai200240China SchoolofEnvironmentalScienceandEngineering ShanghaiJiaotongUniversityShanghai200240China／DepartmentofEnvironmentalScienceandEngineering.HarbinInstituteofTechnologyHarbin150090.China

The mechanism of adsorbing indium(Ⅲ) from sulfate solutions with CL-P204Levextrel resin containing di(-2-ethylhexyl) phosphoric acid was examined by batch operation andinfrared spectra. The results showed that the P204 adsorbed on the resin behaved in the similar wayto solvent extraction except that it was as a monomer in resin adsorbing but in dimeric form insolvent extraction. Three factors including temperature, indium(Ⅲ) concentration of solution, andthe size of resin particles which influence the In^(3+)/H^+ exchange on CL-P204 Levextrel resin wereinvestigated by the modified limited batch technique in order to determine the kinetics ofIn^(3+)/H^+ exchange. It was found that the rate of ion exchange increased with the temperature andthe concentration of solution increasing and with the size of the resin particles decreasing.According to the expression developed by Boyd et al., the controlling factor of In^(3+)/H^+ exchangeon CL-P204 Levextrel resin was the diffusion through the resin particles. The effective diffusioncoefficient, activation energy, and entropy of activation in the particle-diffusion were determinedas 1.57 x 10^(-10) m^2/s, 11.9 kJ/mol, -84.1 J/(mol·K), respectively.

关键词： ion exchange mechanism batch test kinetics indium(Ⅲ) CL-P204 levextrelresin

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Evaluation of Filter Material for Treatment of Different Types of Wastewater

引用

Journal of Environmental Protection 2011年第7期2卷 888-894页

作者： Britt-Marie Svensson Lennart Mathiasson Lennart Martensson Pille Kangsepp School of Education and Environment Kristianstad UniversityKristianstadSweden Center for Analysis and Synthesis Department of ChemistryLund UniversityLundSweden The School of Natural Sciences Linneaus UniversityKalmarSweden

This paper presents an evaluation of the suitability of a mixed absorbent based on peat and carbon-containing ash for treatment of wastewaters, such as wastewater from professional car washes, landfill leachate and stormwater. This mixture is very attractive, since it is a low-cost material which has a capability to simultaneously remove inorganic as well as organic pollutants. Since any filter material eventually needs to be replaced either due to saturation of pollutants or reduced infiltration capacity, it is important that the residual can be handled at low cost and that the environment will be not impaired. The tested mixture, used in filter beds, showed low leaching values and high simultaneous removal efficiency of metals as Cu, Cd and Pb, non-polar organic compounds such as PCBs. Polar organic compounds as phenols were also efficiently removed by microbial and/or chemical degradation in the studied treatment plants with the filter bed acted as a biofilter. Filter material used for three years in a full-scale plant for leachate treatment and four years in treatment plants for wastewater from car washes, had sufficiently high energy content indicating that energy recovery is a good alternative for handling after its usage. Results show that the presented filter material is excellent for both small scale applications (e.g. treatment systems for car wash wastewater with capacity between 250 - 3000 m3 per year) as well as large-scale applications (e.g. filter systems for landfill leachates with capacity above 30,000 m3 per year).

关键词： Wastewater Treatment Industrial Landfill Car Wash batch test Leaching test Peat Carbon-Containing Ash

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

STUDY ON MAXIMUM SPECIFIC SLUDGE ACTIVITY OF DIFFERENT ANAEROBIC GRANULAR SLUDGE BY batch testS

引用

Journal of Shanghai Jiaotong university(Science) 2001年第1期6卷 67-71页

作者：杨虹 K.H.Rosenwinkel H.Meyer School of Life Science and Biotechnology Shanghai Jiaotong Univ. Institute of the Sanitary Eng. and Waste Management the University of Hannover

The maximum specific sludge activity of granular sludge from large scale UASB, IC and Biobed anaerobic reactors were investigated by batch tests. The limitation factors related to maximum specific sludge activity (diffusion, substrate sort, substrate concentration and granular size) were studied. The general principle and procedure for the precise measurement of maximum specific sludge activity were suggested. The potential capacity of loading rate of the IC and Biobed anaerobic reactors were analyzed and compared by use of the batch tests results.

关键词： maximum specific sludge activity anaerobic digestion batch test UASB IC Biobed

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：