Results 31 to 40 of about 1,344 (176)

Struvite Precipitation and Phosphorous Removal from Urine Synthetic Solution: Reaction Kinetic Study

open access: yesBulletin of Chemical Reaction Engineering & Catalysis, 2015
Phosphorus, like oil, is a non-renewable resource that must be harvested from finite resources in the earth’s crust. An essential element for life, phosphorus is becoming increasingly scarce, contaminated, and difficult to extract.
Marwa Saied Shalaby, Shadia El-Rafie
doaj   +1 more source

Dynamic and equilibrium precipitation of struvite from the concentrated cellulosic ethanol stillage

open access: yesWater Science and Technology, 2021
The phosphate rock mineral is the main source of P-fertilizer production. It is estimated to become depleted in next century. Thus, the recovery of phosphorus from waste streams has attracted great interest.
Qiqi Zhang   +6 more
doaj   +1 more source

Recovery Nutrien dari Efluen Digester Anaerobik Air Limbah Tahu dengan Presipitasi Struvite

open access: yesAlchemy
Efluen dari digester anaerobik multistages fixed-bed reactor pengolahan air limbah industri tahu di Desa Giriharja, Kabupaten Sumedang, memerlukan pengolahan lanjut karena masih mengandung nutrien amonium dan fosfor yang melebihi standar baku mutu untuk ...
Zulkarnaini Zulkarnaini   +8 more
doaj   +1 more source

Simulations and Laboratory Tests for Assessing Phosphorus Recovery Efficiency from Sewage Sludge

open access: yesResources, 2018
Phosphorus is a potential environmental pollutant, which could lead to the eutrophication of water bodies. For this reason, wastewater treatment plants worldwide are often designed and operated to eliminate phosphorous from effluents, at substantial cost.
Saba Daneshgar   +3 more
doaj   +1 more source

On precipitation of struvite (MgNH4PO4.6H2O)

open access: yesJournal of Science & Science Education, 2017
Excessive input of N and P into water bodies causes eutrophication which leads to deterioration of aquatic evironments and has adverse effects naturally and economically. It is therefore urgent to remove N and P from wastewater prior to disposal into inland and coastal waters.
openaire   +2 more sources

Struvite precipitation assessment in anaerobic digestion processes [PDF]

open access: yesChemical Engineering Journal, 2008
Struvite precipitation causes important operational problems during the sludge treatment process, especially when EBPR sludge is treated. Predicting struvite formation is critical to be able to design process alternative that best minimises struvite precipitation. With this aim, phosphorus precipitation in an anaerobic digestion pilot plant was studied
Martí Ortega, Nuria   +3 more
openaire   +2 more sources

Nutrient recovery from effluent of anaerobic digester treating swine wastewater via struvite precipitation: A case study in Hue City, Vietnam

open access: yesTạp chí Khoa học Đại học Huế: Khoa học Tự nhiên
Recently, the recovery of nutrients from nutrient-rich wastewater has attracted considerable attention as a sustainable alternative to contaminant removal.
Tuy Ho Thi Xuan   +2 more
doaj   +1 more source

Effect of Calcium Additive on the Crystallization of Struvite

open access: yesMATEC Web of Conferences, 2016
Crystallization of struvite [MgNH4PO4.6H2O] may lead to the deposition of scale which may create significant problems in the process pipes, pumps and other industrial equipment.
Perwitasari Dyah Suci   +6 more
doaj   +1 more source

A practical electrodialysis model for accelerating system development

open access: yesAIChE Journal, EarlyView.
Abstract Empirical optimization of electrodialysis (ED) is dependent on repetitive experiments with incremental adjustments, which is cost prohibitive at scale. While models can reduce the costs associated with optimization and scale‐up, existing ED models are limited in application to specific use cases and tend to be developed for the exploration of ...
Smith Pittman   +3 more
wiley   +1 more source

Women in space: A review of known physiological adaptations and health perspectives

open access: yesExperimental Physiology, EarlyView.
Abstract Exposure to the spaceflight environment causes adaptations in most human physiological systems, many of which are thought to affect women differently from men. Since only 11.5% of astronauts worldwide have been female, these issues are largely understudied.
Millie Hughes‐Fulford   +4 more
wiley   +1 more source

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