Biochar from slow pyrolysis of biological sludge from wastewater treatment: characteristics and effect as soil amendment

2021 ◽  
Author(s):  
Ana C M Vilas‐Boas ◽  
Luís A C Tarelho ◽  
Mohammadreza Kamali ◽  
Tailane Hauschild ◽  
Daniel T Pio ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Soil Amendment ◽  
Slow Pyrolysis ◽  
Biological Sludge ◽  
Treatment Characteristics

scholarly journals Use of Sewage Sludge in Agriculture

2011 ◽  
Vol 68 (2) ◽  
Author(s):  
Daniela CIUPEANU CĂLUGĂRU
Keyword(s):  
Waste Water ◽  
Heavy Metals ◽  
Wastewater Treatment ◽  
Sewage Sludge ◽  
Environmental Protection ◽  
Environmental Quality ◽  
Wastewater Treatment Plants ◽  
Biological Sludge ◽  
The Law ◽  
High Degree

For turning to a high degree of favorability of sludge from wastewater treatment plants, currently the reintroduction in the natural circuit of this waste is an urgent priority. Knowing precisely the composition of chemical and biological sludge from waste water in accordance with the law and the rules of their application, along with modern wastewater treatment appropriate technologies play a key role on environmental protection. Involvement by precise rules, the content of heavy metals in relation to the maximum permitted by law, translate in to particularly advantageous results in terms of environmental quality.

Biological Sulfur-Oxidizing Potential of Primary and Biological Sludge in a Tannery Wastewater Treatment Plant

2015 ◽  
Vol 226 (12) ◽  
Author(s):  
Cesira Giordano ◽  
Francesco Spennati ◽  
Anna Melone ◽  
Giulio Petroni ◽  
Franco Verni ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Treatment Plant ◽  
Tannery Wastewater ◽  
Biological Sludge ◽  
Sulfur Oxidizing

Evaluation of wastewater treatment by-products as soil amendment: Growth of sorghum-sudan grass and trace elements concentrations

2012 ◽  
Vol 47 (11) ◽  
pp. 1678-1686 ◽  
Author(s):  
Paramasivam Sivapatham ◽  
Mariel C. Potts ◽  
Jeffrey A. Delise ◽  
Kenneth S. Sajwan ◽  
Ashok K. Alva ◽  
...  
Keyword(s):  
Trace Elements ◽  
Wastewater Treatment ◽  
Soil Amendment ◽  
Sudan Grass ◽  
By Products

The Use of ASM based Models for the Simulation of Biological Sludge Reduction Processes

2008 ◽  
Vol 3 (3) ◽  
Author(s):  
Bruce R. Johnson ◽  
Glen T. Daigger ◽  
John T. Novak
Keyword(s):  
Wastewater Treatment ◽  
Research Effort ◽  
Reduction Process ◽  
Decay Product ◽  
Sludge Reduction ◽  
Operating Characteristics ◽  
Biological Sludge ◽  
Wide Range ◽  
Treatment Facilities ◽  
And Performance

The advent of sludge reduction technologies that are capable of significantly reducing sludge production from wastewater treatment facilities has garnered much interest from the wastewater treatment profession. As part of CH2M HILL's effort to better understand the mechanisms behind these processes, a research effort was completed that was focused on developing an ASM based model which adequately reflects the performance of the Cannibal® Sludge Reduction process by Siemens. A modification is proposed of the standard ASM 2d model to capture the effects of biological sludge reduction used in the Cannibal Solids Reduction process. This model is able to capture the essential aspects of this system and provides a more quantitative method for the sizing and performance of these types of systems. The primary components of this modification include separation of the microbiological decay products from the traditional particulate inert fraction, and into a separate particulate decay product for aerobic/anoxic microbes (XDAA). A new process rate is included in the model for anaerobic “hydrolysis” of XDAA to XS. The results were compared against the experience of Siemens on a wide range conditions. The results indicate that this model predicts operating characteristics of the Cannibal process with a reasonable level of accuracy.

scholarly journals Exhausted Grape Marc Derived Biochars: Effect of Pyrolysis Temperature on the Yield and Quality of Biochar for Soil Amendment

2021 ◽  
Vol 13 (20) ◽  
pp. 11187
Author(s):  
Kawthar Frikha ◽  
Lionel Limousy ◽  
Muhammad Bilal Arif ◽  
Nicolas Thevenin ◽  
Lionel Ruidavets ◽  
...  
Keyword(s):  
Thermogravimetric Analysis ◽  
Pilot Plant ◽  
Soil Amendment ◽  
Pyrolysis Temperature ◽  
Small Scale ◽  
Slow Pyrolysis ◽  
Grape Marc ◽  
Yield And Quality ◽  
Ryegrass Growth

The present study focuses on the valorisation of winery industry wastes through slow pyrolysis of exhausted grape marc (EGM). The optimal pyrolysis parameters were firstly identified by small scale experiments carried out using thermogravimetric analysis. Nine pyrolysis temperatures were tested and their influence on the decomposition of the EGM residue and biochar yield was evaluated. Then, biochar production was conducted in a pilot plant at three chosen temperatures (450, 500 and 550 °C) at which the biochar was shown to be stable. The effects of biochar application to soil with respect to plant (ryegrass) growth was also evaluated. Pyrolysis of EGM at the 450–550 °C temperature range has been shown to generate thermally stable and nutrient-rich biochars, but only the biochar produced at 450 °C showed a marked benefit effect of ryegrass growth.

Analysis of the criteria of technological and technocal-economic effectiveness of design choices

10.12737/4856 ◽  
2014 ◽  
Vol 8 (4) ◽  
pp. 102-116
Author(s):  
Владимир Лебедев ◽  
Vladimir Lebedev ◽  
Елена Крымская ◽  
Elena Krymskaya ◽  
Александр Анидалов ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Wastewater Treatment ◽  
Economic Effectiveness ◽  
Biological Wastewater Treatment ◽  
Aerobic Treatment ◽  
Local Systems ◽  
Biological Sludge ◽  
Private Housing ◽  
Simulation Results ◽  
Wastewater Treatment Systems

The authors of the article consider a number of numerical simulation results as well as computation results pertaining to the relative mechanical-economic effectiveness of design choices, local systems of biological wastewater treatment utilized by small-size residential estates, private housing and service enterprises. The authors have developed assessment criteria for technical and comparative technical-economic effectiveness of wastewater treatment systems on the basis of alternating aerobic-treatment machines utilizing biological sludge, and have applied the criteria to a simulation model.

Biological sludge solubilisation for reduction of excess sludge production in wastewater treatment process

2006 ◽  
Vol 54 (5) ◽  
pp. 51-58 ◽  
Author(s):  
T. Yamaguchi ◽  
Y. Yao ◽  
Y. Kihara
Keyword(s):  
Wastewater Treatment ◽  
Biological Treatment ◽  
Wastewater Treatment Plants ◽  
Experimental Period ◽  
Excess Sludge ◽  
Wastewater Treatment Process ◽  
Biological Sludge ◽  
Scale Experiment ◽  
Sludge Production

A novel sludge disintegration system (JFE-SD system) was developed for the reduction of excess sludge production in wastewater treatment plants. Chemical and biological treatments were applied to disintegrate excess sludge. At the first step, to enhance biological disintegration, the sludge was pretreated with alkali. At the second step, the sludge was disintegrated by biological treatment. Many kinds of sludge degrading microorganisms integrated the sludge. The efficiency of the new sludge disintegration system was confirmed in a full-scale experiment. The JFE-SD system reduced excess sludge production by approximately 50% during the experimental period. The quality of effluent was kept at quite a good level. Economic analysis revealed that this system could significantly decrease the excess sludge treatment cost.

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