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sea sand treatment technology
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A Review About the Occurrence and Effectiveness of …
Persistent organic pollutants (POPs) refer to various pollutants, including organochlorine pesticides (OCPs), industrial chemicals, and other unintended byproducts that are discharged through anthropogenic activities such as industrial processes, waste disposal, and agricultural activities, as well as natural sources such as forest fires and …
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Seawater-based bio-cementation of natural sea sand via …
The sand column was prepared by packing the dry sea sand into a sterile 300 ml polyvinyl chloride (PVC) syringe with a diameter of 5 cm. For each sand column, 380 g of sea sand was added to the syringe and compacted via vibration until a height of 12.5 cm was reached, at which point the sand column's density was ∼ 1.54 g/cm 3.One …
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Properties and Application of Sea Sand in Sea Sand
In order to directly apply seawater and sea sand in construction without desalination, a new type of circular concrete-filled steel tube (CFST) encased …
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Seawater desalination technology and engineering in …
Section snippets Freshwater resources in China. The total amount of freshwater resource in China is 2.7 × 10 12 m 3.As shown in Fig. 1, the annual water supply capacity has been stabilized around 6.0 × 10 11 m 3 /year [3], while the national population and economy is growing in a linear trend over the last decade and expanding at an …
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Produced Water Solids Separation
In addition to reservoir requirements, the process equipment used in a seawater treatment system can dictate the necessary level of suspended solids removal. We provide filtration systems that can deliver different levels of solids removal to meet specific operational, utility, and space and weight requirements.
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Surface innovation for fabrication of superhydrophobic sand …
The treatment of sand grains with Si/FDTS resulted in a lower sliding angle of 9.5°, imparting self-cleaning capabilities and higher hydrophobic efficiency. The modified sea sand grains demonstrated excellent water holding and storage capabilities in long-term experiments, which could be harnessed to improve agriculture in arid regions.
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Review of technologies for oil and gas produced water treatment
Step 3: requirement of pre- or post-treatment technologies with given technologies. • Step 4: durability of the treatment technology. • Step 5: mobility of the treatment units. The ranking of each step depends on the ranking of the other steps and the quality of effluent is affected by the evaluation in separate step: •
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Incorporating sea sand into self-compacting concrete: a …
It focuses on assessing the durability of SCC incorporating sea sand through real-time monitoring with the Internet of Things (IoT) and employing artificial intelligence …
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Water | Free Full-Text | Navigating Produced Water …
The petroleum industry produces a large amount of wastewater, known as produced water (PW), during oil production and processing. This PW contains hazardous organic and inorganic components that can harm the environment. Conventional treatment methods have been used to purify PW, but they do not meet environmental regulations, …
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Developing a Water Treatment Filter by Integrating Slow Sand …
Scarcity of fresh drinking water has become a major concern in various parts of the world recently. Therefore, this study aimed to develop a sustainable polymer (polypropylene) and carbon (activated carbon from coconut shell) based water treatment filter. The filter was made by integrating polypropylene nonwoven fabric on the top of a …
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Seawater desalination technology and engineering in …
The seawater desalination industry in China has been expanding rapidly in recent decades. Per the cumulative completed desalination capacity exhibited in Fig. 1, the desalination capacity in China expanded remarkably in the annual rate of 35%–64% since 2005, and has been >1 million m 3 /d since 2016 [3, 4, 9].Specifically by the end of …
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Research on the performance of seawater sea-sand …
This is attributed to the fact that the undisturbed sea sand undergoes desalination treatment (spraying, soaking, ... FRP bars instead of steel bars to prepare concrete is a new idea and method, and it is also one of the most effective technologies [109], [110], [111]. FRP bars is a non-metallic material, which is a high-performance …
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A review on the physical & chemical properties of sea sand …
Sea sand is a widely available form of sand on comparing with the river sand. Sea sand is not used widely because it may contain chloride, sea shells in large numbers and other harmful chemicals like Fe 2 O 3, V 2 O 5, Cr 2 O 3, Ga 2 O 3, Br 2 O and Re 2 O 7.The usage of sea- sand may either address the concrete's existing …
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Performance evaluation and microstructure
To adequately develop the application of marine resources for island construction and effectively promote the sustainability of industrial resources, this paper investigates the feasibility of using seawater and coral or sea sand as replacements for freshwater and river sand in alkali-activated mortars (AAMs) containing ground blast …
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CN105110668A
Mainly contain for the state-of-the-art technology measure of villaumite in extra large sand both at home and abroad: extra large sand fresh water flush method, reinforcing steel bar corrosion inhibitor method, reinforcing bar plating method, concrete proportioning optimized method etc.Wherein extra large sand fresh water flush method is the method commonly …
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Desalination technologies and their environmental impacts: …
Desalination technologies have been shown to require considerable amounts of energy [37] and generate greenhouse gas (GHG) emissions. However, the use of environmentally friendly desalination technologies can minimize environmental issues, including climate change, and ultimately help create a sustainable environment [38], …
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Exploring the properties of sea sand in sea sand–seawater …
A paper in the Journal of Materials in Civil Engineering compares the chemical and physical properties of sea sand from nine locations and its use in concrete …
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Selection of pretreatment technologies for seawater reverse …
Membrane fouling is a complex process which often results from the additive impacts of a combination of foulants listed above [11, 26, 28].Of the various types of fouling, biological fouling is the most difficult to prevent or control in the seawater desalination [10, 23, 29, 30].The biological fouling potential depends on several factors: the concentration …
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Properties and Application of Sea Sand in Sea …
Sea sand–seawater concrete had a high early compressive strength at 7 days and remained slightly higher than conventional concrete at 28 days. The …
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(PDF) Analysis Of Use Sea Sand as A Fine Aggregate
Manap et al. (2016) found that the strength of bricks made from dredged sediment exceeds the strength of ordinary bricks. Sea sand can be used as a smooth aggregate substitute because it has a ...
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Overview of Drinking Water Treatment Technologies | US …
RO can also be used for removing salts from brackish water or sea water. NF is useful for removal of hardness, color and odor compounds, synthetic organic chemicals and some disinfection byproduct precursors. ... Adsorptive water treatment technologies involve passing contaminated water through a media bed. The contaminants in the …
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How does a sand filter work? | Filter technologies
The water to be purified slowly sinks through the sand of the sand filter, leaving the dirt particles from the water behind in the fine pores of the sand. This filter technology is especially suitable for pre-filtration of disinfection equipment, preparation for micro- and ultra-filtration, recirculation systems, rinse water processes ...
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Treatment advances of hazardous solid wastes from oil and …
Most existing reviews discuss OCDC and OS separately, but it is concluded that the choice of treatment methods can be mutually referenced. Therefore, a comprehensive overview of the treatment technologies for hazardous solid wastes generated during both petroleum drilling and production is provided, aiming to inspire readers and contribute to the further …
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Pre-concentration of quartz from sea sand through …
The high magnetic field intensity and mineral magnetic differences were the critical factors influencing the magnetic separation of quartz from sea sand. The S-HGMS technology achieved effective pre-concentration of quartz from sea sand, reducing the handling capacity and providing a high-quality material for subsequent quartz refinement …
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Introduction to Sand-Restoration Technology and Model in …
As one of the countries with the highest desertification in the world, sand ecological restoration and management have been given great attention in China. However, a systematic and comprehensive review of sand-restoration technology is still lacking. Therefore, with "sand restoration technology" and "China" as the keywords, we …
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Sustainable seawater desalination: Current status, …
In short, RO desalination, which itself is a 4 to 5 times more energy-efficient technology than commonly used thermal processes, is considered nearly 8–10 times more energy intensive when compared with traditional water treatment technologies applied on surface water sources such as, lakes or rivers [108].
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A solution of sea sand as a sustainable fine aggregate
This paper proposes a novel method of using electric field force to desorb chemically bound chloride ions from sea sand, which is a sustainable fine aggregate for …
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Utilization of seawater and sea sand in concrete for the …
The project's goal is to increase the sustainability of fresh water and M-sand by using seawater and sea sand in concrete and to improve concrete strength by using varied amounts of GGBS with cement. With the use of saltwater sea sand concrete, corrosion of steel reinforcement is imminent. FRP is thus utilized in concrete as …
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Microplastics removal through water treatment plants: Its …
Water treatment can be conventional, consisting of primary and/or secondary treatment stages with microplastics removal efficiency as high as 99% (Carr et al., 2016), while it also concentrates microplastics for discharge (Murphy et al., 2016).Pre-treatment may precede primary treatment and it usually consists of coarse screens, grit chambers …
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Effects of Seawater and Sea-Sand on Concrete Properties: A …
Washing sea-sands and the process involved leads to extra cost in making concrete. Furthermore, fresh water is used for washing which is not environmentally friendly. To tackle these limitations, researchers started to work on directly using sea-sand without desalting as well as seawater in concrete.
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Research progress of soft soil foundation treatment technology
After nearly 10 years of development, port engineering has achieved fruitful results, especially the progress of soft foundation treatment technology.
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A review of treatment technologies for produced water in …
The ocean, also known as the blue territory, has abundant resources, especially oil and gas (Watson, 2020).Offshore oil production contributed around 30% of the overall production in 2019 (Yacovitch et al., 2020; Kaiser, 2020).Produced water (PW), which represents the largest-volume byproduct in oil and gas production operations on …
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A comprehensive review of pre- and post-treatment …
Desalination is an energy intensive process requiring adequate pre- and post- treatment. The novelty of this paper is that it jointly reviews the technologies for pre-treatment, desalination and post-treatment and bridges the gap between them while comparing the treatment methods needed depending on the type of feed water …
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Emerging paradigms in sustainable shellfish aquaculture: …
Microalgae technology has shown great potential as an effective and sustainable way to treat aquaculture wastewater, and it is being increasingly used in aquaculture operations around the world (Abdelfattah et al., 2022; Li et al., 2021).Microalgae technology works by cultivating microalgae in a wastewater …
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Benefits of using sea sand and seawater in …
The use of sea sand and seawater in concrete can provide sustainability to natural resources, while improving the mechanical properties of concrete. The corrosion of steel-reinforcement is inevitable …
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Removal of microplastics in water: Technology progress and …
In recent years, a large number of technologies have been developed to remove MPs in water environments, which can be roughly divided into physical, chemical, and biological technology according to capture and removal principles (Fig. 1).Dependent on the capture action of particular chemicals or materials, MPs are separated from …