scholarly journals Laboratory and Pilot Plant Evaluation of Intermittent Loading on Small- Scale Extended Aeration Biological Systems

1977 ◽  
Author(s):  
Jerome L. Mahloch ◽  
Daniel E. Averett ◽  
Marcia Headstream
Keyword(s):  
Pilot Plant ◽  
Biological Systems ◽  
Small Scale ◽  
Intermittent Loading ◽  
Plant Evaluation

scholarly journals Heating performance of a laboratory pilot-plant combining heat exchanger and air scrubber for animal houses

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Manuel S. Krommweh ◽  
Wolfgang Büscher
Keyword(s):  
Heat Exchanger ◽  
Air Temperature ◽  
Pilot Plant ◽  
Animal Husbandry ◽  
Operating Costs ◽  
Small Scale ◽  
Heating Performance ◽  
Livestock Buildings ◽  
Reduce Emissions ◽  
Recuperative Heat Exchanger

AbstractExhaust air treatment systems (EATS) are used in animal husbandry to reduce emissions. However, EATS are associated with high acquisition and operating costs. Therefore, a plant technology is being developed that integrates a recuperative heat exchanger into a biological air scrubber. The overall aim is to reduce total costs of livestock buildings with EATS by saving heating costs and to improve animal environment. In this study, a special pilot-plant on a small-scale, using clean exhaust air, was constructed to evaluate the heating performance on laboratory scale. Three assembly situations of the heat exchanger into trickle-bed reactor were part of a trial with two different defined air flow rates. In all three assembly situations, preheating of cold outside air was observed. The heating performance of the assembly situation with the sprayed heat exchanger arranged below showed an average of 4.4 kW at 1800 m3 h−1 (outside air temperature range 0.0–7.9 °C). This is up to 18% higher than the other two experimental setups. The heating performance of the pilot-plant is particularly influenced by the outside air temperature. Further research on the pilot-plant is required to test the system under field conditions.

scholarly journals Simulation of NOM events in pilot plant evaluation of DAF/Ozone/BAC for drinking water treatment

2017 ◽  
Vol 17 (6) ◽  
pp. 1793-1800
Author(s):  
Y. Yan ◽  
M. Carter ◽  
A. Mercer
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Pilot Plant ◽  
Drinking Water Treatment ◽  
Natural Occurrence ◽  
Raw Water ◽  
Humic Materials ◽  
Pilot Investigation ◽  
Brewing Method ◽  
Plant Evaluation

Abstract Pilot plant testing is invaluable for ascertaining the robustness of water treatment processes against raw water quality events such as turbidity and colour spikes, whether it be for stress testing of an existing process or designing of a new process. Unfortunately, the natural occurrence of such events (particularly colour) can be difficult to predict and commercial humic materials generally fail to closely match the indigenous natural organic matter (NOM) present in the raw water. Therefore, it is highly desirable to be able to simulate NOM event conditions. This paper describes a simple brewing method that we developed and used in our recent pilot plant evaluation of a proposed DAF/Ozone/BAC process for drinking water treatment. Using this method we successfully prepared, by using fallen leaves etc. collected from the local catchment area, large quantities of a concentrated NOM stock solution with its specific ultraviolet absorbance (SUVA), when diluted, very close to the median SUVA of historical NOM events. The brewed solution showed broadly similar NOM characteristics to those of the raw water encountered during the pilot investigation period in terms of molecular weight distribution and fractionation. The coagulation behaviour was also examined for the spiked and non-spiked raw water.

scholarly journals Biomining – Biotechnological Systems for the Extraction and Recovery of Metals from Secondary Sources

2018 ◽  
Vol 20 (4) ◽  
pp. 737-742 ◽  
Keyword(s):  
Large Scale ◽  
Low Cost ◽  
Biological Systems ◽  
Bottom Ash ◽  
Precious Metals ◽  
Small Scale ◽  
Secondary Sources ◽  
Hydrometallurgical Processing ◽  
Pre Treatment ◽  
Pyrometallurgical Processing

<p>Biomining is the common term used to define processes that utilize biological systems to facilitate the extraction of metals from ores. Nowadays, a biomining concept can be defined as a two stage combined biological systems (1st stage bioleaching and 2nd stage biosorption) in order to perform the extraction and recovery of the metals from secondary sources such as industrial and mining waste, waste electrical and electronic equipment (WEEE), bottom ash and end of life vehicles. Overwhelming demand and limited sources of metals have resulted in searching new sources so that attentions have been shifted from mining process towards recycling of secondary resources for the recovery of metals. There are several metallurgical processes for metal recovery from the secondary sources such as pyrometallurgical processing, hydrometallurgical and bio/hydrometal-lurgical processing. Biomining processes are estimated to be relatively low-cost, environmentally friendly and suitable for both large scale as well as small scale applications under the bio/hydrometallurgical processing. Thus, the process involves physical separation (pre-treatment) and biomining (bioleaching and biosorption) and hydrometallurgical processes for recovery of base metals, rare earth elements (REEs) and precious metals from e-waste was evaluated.</p>

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.

From laboratory scale to pilot plant: Evaluation of the catalytic co-pyrolysis of grape seeds and polystyrene wastes with CaO

2020 ◽  
Author(s):  
A. Veses ◽  
O. Sanahuja-Parejo ◽  
M.V. Navarro ◽  
J.M. López ◽  
R. Murillo ◽  
...  
Keyword(s):  
Pilot Plant ◽  
Laboratory Scale ◽  
Grape Seeds ◽  
Plant Evaluation

Pilot-plant evaluation of TiO2 and TiO2-based hybrid photocatalysts for solar treatment of polluted water

2016 ◽  
Vol 320 ◽  
pp. 469-478 ◽  
Author(s):  
Luminita Andronic ◽  
Luminita Isac ◽  
Sara Miralles-Cuevas ◽  
Maria Visa ◽  
Isabel Oller ◽  
...  
Keyword(s):  
Pilot Plant ◽  
Polluted Water ◽  
Solar Treatment ◽  
Plant Evaluation
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