Single-step dynamic dewatering of microalgae from dilute …
Background Dewatering constitutes a major challenge to the production of microalgae, accounting for 20–30% of the product cost. This presents a setback for the applicability of microalgae in the development of several sustainable products. This study presents an investigation into the dynamic dewatering of microalgae in a combined …
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Improvement of Sludge Dewatering by Ultrasonic …
Nowadays, treatment and dewatering of sludge are one of the most difficult processes in wastewater treatment plants and a major challenge for professionals and officials. Reducing the volume of sludge production in activated sludge method is very important. Dewatering process is responsible for separating excess water from the …
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Recent developments in drying and dewatering for low rank coals
An additional optimization method, which. Conclusions. This paper provides a comprehensive overview on recent studies related to drying and dewatering for low rank coals using evaporative and non-evaporative drying technologies. Conclusions and recommendations for future research in selecting drying technologies to upgrade low …
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Enhanced technology for sewage sludge advanced dewatering …
Mechanical dewatering techniques include pressure filtration, centrifugation, and others. Furthermore, there are some novel dewatering techniques for sludge, such as vacuum. Economic analysis. In order to apply sludge conditioning and dewatering methods in practice, cost estimates must be considered.
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Energy Exploration & Exploitation Novel method for …
Therefore, dewatering rate optimization is so important for the CBM production. To improve the production of these CBM wells, previous researchers have investigated the mechanism of influencing the CBM production from the perspective of permeability and porosity variation, which mainly includes stress sensitivity and matrix shrinkage effect ...
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A review on sludge dewatering indices
Challenges in measuring sludge dewatering performance Together with improvements in sludge dewatering to achieve the highest solid content sludge cake, it is essential to establish a reliable dewatering index that can fully express how easily sludge releases its water (Pan et al. 2003). To date, however, there is no universal indicator yet
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Water disposal minimization of a screw press in the tissue
Dewatering is a major process in a wide range of manufacturing industries. One of the most commonly used technologies for dewatering is the screw press. The optimized setting of the screw press ...
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Design of Cost Effective Dewatering System in Subsurface …
A total number of 4 well were considered in the study. The values of drawdown at well locations for a unit pumpage at a well were developed by using TWODAN software. Optimization Model formulation An optimization model was developed to minimize the total cost of dewatering in the confined aquifer to reduce the water table level.
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Removal of iodine from the salt water used for …
Removal of iodine from the salt water used for caustic soda production by ion-exchange resin adsorption. Xiaoping Yu., Wanjing Cui., Feng Zhang., Yafei Guo., …
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Hydrothermal alkaline conversion of sewage sludge: …
In this study, a facile hydrothermal-alkali method was proposed for sludge dewatering and HA extraction. Hydrothermal-alkali method was used as a pretreatment …
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Oily cold rolling mill sludge conditioned by quicklime to …
Dewatering is critical to oily cold rolling mill (CRM) sludge treatment. Therefore, finding an efficient, energy-saving, and applicable dewatering technology for oily CRM sludge is still urgent. This study investigated the performance of quicklime as a conditioning agent for oily CRM sludge conditioning and dewatering. The interactive …
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Optimization of dewatering process of …
OPEN. Optimization of dewatering . process of concentrate pressure filtering by support vector regression. Huizhong Liu* & Keshun You. This work studies the mechanism and …
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Review of recent developments in iodine wasteform …
1 Introduction. Nuclear fission is a dense source of energy that produces fission products. Radioiodine primarily includes two fission products that attract attention due to the potential for biological uptake if released into the environment, which are short-lived I-131 (t 1/2 = 8.04 d) and the longer-lived I-129 (t 1/2 = 1.57 × 10 7 y).The full life cycle of …
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Dewatering optimization with in-line and real-time …
Full-scale testing was carried out at two wastewater treatment plants to determine whether residual polymer concentration, measured by filtrate and centrate …
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Biodiesel from Algae | SpringerLink
The use of pressing or centrifugation for dewatering of macroalgae biomass increases the cost by as much as 20–30% but ensures longer "shelf-life" and lesser transportation costs. ... (conversion, 99.8%), exhibited a cetane number of 58.5%, iodine value of 67.2 g I 2 /100 g, unsaturation level of 71.3%, and a ... statistical optimization ...
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Oily cold rolling mill sludge conditioned by …
Abstract. Dewatering is critical to oily cold rolling mill (CRM) sludge treatment. Therefore, finding an efficient, energy-saving, and applicable dewatering …
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MGO Dewater Tutorial
MGO Tutorial - Dewatering Scenario Introduction Pumping well optimization technology is used to determine the ideal pumping well locations, and ideal pumping rate s at these locations, in order to minimize or maximize a specified criteria. Typically, pumping well optimization is used in the following applications:
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Sustainable and Innovative Solutions for Sewage Sludge Management …
The Iodine Adsorption Value (mg/g) pH; 272.81: 0.27: 0.05: 70.4: 192.8: 3.71: Low-temperature pyrolysis of sludge-adsorbent can be utilized as: -Adsorbent: most of the surface of the material is carbon and active groups which contain large amounts of mesoporous and microporous. Its physical and chemical properties are similar to …
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Optimal design and dynamic control of construction …
The existing dewatering design methods are mostly based on the optimization of pumping rate needed to maintain a stable water level, while the drop and …
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Sustainable and Innovative Solutions for Sewage …
Dewatering tests also showed an improvement of dewatering of 40–50%, with increased solids concentration from 21% to >31% TS. The ammonia …
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Electrokinetic remediation of soils polluted by heavy
Iodine-based solutions for complexing the heavy metals dispersed in soil ... A dewatering stage (i.e., the removal of the soil solution that can be withdrawn through the different wells) was performed after two weeks, and then at the end of the month. After the removal of the soil solution (which was enriched with the contaminant), an equal ...
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Insight into the effects of biochar as adsorbent and
It was reported that iodine value can represent the surface area contributed by pores larger than 1 nm and was a good indication of the adsorption capacity of a carbonaceous adsorbent for water pollutant ... García AI (2005) Activated carbons from sewage sludge and discarded tyres: production and optimization. J Hazard Mater …
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High efficient and continuous recovery of iodine in …
Here, we systematically study the principles and operational feasibility of using FCDI system to concentrate iodine in high and low iodine brine efficiently. The concentration of iodine in seawater is low, and the content of iodine in the brine …
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Cation and anion immobilization through chemical bonding
During the structural optimization, all ions were allowed to relax. An energy cutoff of 500 eV and a k -point scheme of 3 × 3 × 1 were used to achieve energy and force convergence of 0.1 meV and ...
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(PDF) Dewatering System Control by MATLAB Software
Abstract. The aim was to design a MATLAB program to calculate the phreatic surface of the multi-well system and present the graphical shape of the water table drawdown induced by water extraction ...
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Optimizing Polymer Mixing/Activation Improves …
Improves Sludge Dewatering: Case Studies 2018 Joint PA-AWWA/PWEA/PMAA Water and Wastewater Technology Summit ... Annual Average Dewatering Cost (2 011-2014) = $3.7M K. Tagney and R. Gupta, Reducing Dewatering Costs through Optimization Program, 2017 WEFTEC. Dewatering Cost at EMWD - $3.7M/yr Polymer Cost - Average $1.2 M/yr AR2. …
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Conditioning of sewage sludge with electrolysis
Coupling mechanism and parameter optimization of sewage sludge dewatering jointly assisted by electric field and mechanical pressure. 2022, Science of the Total Environment. Show abstract. Pressurized electro-dewatering technology is considered to be one of the most effective methods for improving dewatering …
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Industrial Wastewater | Hach
Claros™, the Water Intelligence System from Hach, integrates all plant data sources, including system data, device data and manually-collected data, dynamically adjusting to changes in your process stream. Claros provides continuous process management solutions for industrial wastewater applications. Claros allows you to manage your treatment ...
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Dewatering System Control by MATLAB Software
Dewatering technology is influenced by geology, groundwater levels, and the type of excavation. Sumps, wells, and well points are the most popular dewatering methods. Sumps perform best in fine-grained soils or coarse boulder deposits; pumping from perforated drums or casings in a gravel-
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How to Optimize Polymer Efficiency for Better Sludge …
Inversion of Emulsion: water-in-oil oil-in-water 99.5% Water 70% Polymer gel 30% Oil Oil Polymer gel Polymer 1 gal Water 100 gal Neat Polymer > 1.0 % Polymer Solution Inverting Surfactant Especially Important for Clarifier at WTP - Strip "oil" off the polymer surface - Help polymer get exposed to water quickly
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