wastewater treatment containing

The extracellular polymeric substances (EPS) and microbial community structures were investigated in wastewater treatment containing copper oxide nanoparticles (CuO NPs) (reactor R1) and CuO NPs and humic acid (HA) (reactor R2) using both sequencing batch bioreactors (SBRs), and their response on resistance …

Nowadays, due to their high stability and efficiency, conductive-diamond anodes have been gaining more attention in the treatment of industrial wastewater containing organic pollutants 177. This ...

Water scarcity is one of the major problems in the world and millions of people have no access to freshwater. Untreated wastewater is widely used for agriculture in many countries. This is one of the world-leading serious environmental and public health concerns. Instead of using untreated wastewater, treated wastewater has been found …

In the study of activated carbon adsorption treatment of gold mine cyanide containing wastewater, it is found that activated carbon has a significant effect on the treatment of cyanide containing wastewater with an initial total cyanide concentration of 389.9–420.0 mg/L, and the cyanide removal rate is 99.8–99.9%.

Anerobic/aerobic sequential batch biofilter reactor was used for the treatment of pharmaceutical WW containing phenols, O -nitroaniline, and organic matter with concentration from 28,400 to 72,200 mg/L [79]. The results showed successful removal of the organic matter and toxicity from the pharmaceutical WW.

Providing Dissolved Oxygen. Air is only 21% (+/-) oxygen. Have to move a lot of air through water to transfer the oxygen. Oxygen readily dissolves into water. Passive – large …

The energy consumption was about 3.6 and 2.2 times less than that of UV/BiPO 4 and O 3 process, separately, which suggested that UV/O 3 /BiPO 4 system had an application potential for surfactant containing wastewater treatment or recycle. CRediT authorship contribution statement. Gaozu Liao: Conceptualization. Xiaojiao Qing: …

Wastewater treatment facilities in the United States process approximately 34 billion gallons of wastewater every day. Wastewater contains nitrogen and phosphorus from human waste, food and certain soaps and detergents. Once the water is cleaned to standards set and monitored by state and federal officials, it is typically released into a …

Among them, chemical precipitation and membrane separation have been widely applied for high fluoride-containing wastewater treatment. Chemical precipitation (Ca 2+ + 2 F − ↔ CaF 2) by adding calcium salt is a cost-effective method for removing fluoride from fluoride-containing wastewater (Lacson et al., 2021a; Won et al., 2012).

The results of the present study support the hypothesis that bacteria and algae behave synergistically during the treatment of atrazine-containing wastewater. Furthermore, their favorable removal capacity and stable performance with regard to the removal of potential endocrine disruptors from agricultural wastewater suggests they are ...

In general, conventional wastewater treatment consists of a combination of physical, chemical, and biological processes and operations to remove insoluble …

The major aim of wastewater treatment is to remove as much of the suspended solids as possible before the remaining water, called effluent, is discharged …

At present, there are many treatment methods for CCW. In order to understand these various treatment technologies and their treatment effects and applications, this work first searched the Web of Science database for the keywords "copper-containing wastewater", "industrial wastewater treatment" and "combined …

Dye-containing wastewater should be treated effectively in order to prevent adverse effects on the environment and water resources. This review summarizes the recent dye removal technologies from ...

Wastewater Treatment — Safe Drinking Water Foundation. WASTEWATER TREATMENT FACT SHEET. What is Wastewater? Wastewater is water that has been used and must be treated before it is …

Primary treatment is required to provide a pre-treatment to the hospital wastewater. The resulting effluent can be treated using different biological processes, such as ASP, MBR, MBBR, and CWs. These biological units can also be combined with different disinfection, adsorption or advanced oxidation technologies to enhance the removal of ...

US EPA, OW, OWM, Water Permits Division. Subject. This fact sheet describes the basic functions of wastewater treatment and the two stages in treatment of wastes -- primary …

AC-based adsorption is a promising process for dye-polluted wastewater treatment. • AC's surface chemistry, porosity, and enhanced surface area are reviewed in detail. • AC modification techniques, tuning factors, and the modifying agents' are reviewed. • Research gaps in the application of AC in wastewater treatment are furnished.

The composition of the wastewater is complex, containing poisonous and harmful substances like ammonia nitrogen, cyanide, thiocyanide, phenols, polycyclic and heterocyclic aromatic compounds. In addition, in this wastewater, the concentrations of total salt, total phenols and volatile phenols are usually 26500–60000 mg/L, 300–1000 …

Introduction. Fluoride contamination in natural water has become a worldwide issue due to the discharge of high fluoride-containing wastewater (250–1000 mg L −1) from semiconductor, electroplating, metallurgical and ceramics industries (Ahmadijokani et al., 2021; Lacson et al., 2021b).Excessive fluoride has been …

The application of lignin-based adsorbents to the treatment of wastewater containing heavy metal ions, inorganic anions, organic dyes and drugs is reviewed. Finally, the current problems and future research directions of lignin-derived adsorbents are summarized and prospected. To achieve controllable preparation and large-scale …

Wastewater treatment containing methylene blue dye as pollutant using adsorption by chitosan lignin membrane: Development of membrane, characterization and kinetics of adsorption ... Methods like oxidation-reduction, membrane separation, coagulation, and adsorption are applied for wastewater treatment [[5], [6], [7]]. …

FIGURE 3.1 Following conventional wastewater treatment (preliminary, primary, and secondary), municipal wastewater is discharged to surface waters or reused, or before discharge to surface waters (not illustrated). Additional treatment may be needed before reuse. Sludge from wastewater treatment processes are treated and then disposed or …

Nuclear energy has been developed and used on a large scale as a clean energy source. Since the increasing growth of the worldwide nuclear industry, the pollution of wastewater by radionuclides and toxic metals is a major environmental issue. The extraction method had some advantages such as simple operation, fast kinetics, wide …

Sterritt et al. [165] found that activated sludge treatment process has a removal efficiency of more than 50% for heavy metal containing wastewater. The satisfactory BOD, COD and heavy metal removal shows the potential of MBR system in treating pharmaceutical wastewater.

Thiocyanate is a common pollutant in gold mine, textile, , dyeing, coking and other industries. Therefore, thiocyanate in industrial wastewater is an urgent problem to be solved. This paper reviews the chemical properties, applications, sources and toxicity of thiocyanate, as well as the various treatment methods for thiocyanate in …

IM–FOC process is used for the treatment of wastewater containing EDTA-Cu(II). Treatment efficiencies and Fe(II) yields of IM were much higher at lower initial pH. IM provides Fe(II)-rich wastewater with proper pH for subsequent Fenton oxidation. The contributions of IM, FO and coagulation to COD removal are 22.3%, 47.8% and …

Compared to traditional treatment technologies, CWs are a sustainable technology for removing residual pollutants from sewage treatment plant effluents as their simple equipment, low operating costs, and easy management [25].In addition, CWs can not only remove refractory pollutants such as antibiotics, pesticides [[26], [27]], micro …

For the treatment of wastewater containing a mixture of dyes, i.e. Reactive Orange 16 and Reactive Red 180, an innovative hybrid process comprising of a photocatalytic and membrane distillation unit has been proposed in the literature (Yatmaz et al., 2017). In this system, the membrane distillation unit was connected to the …

Aniline detected in many industrial wastewater is a refractive organic pollutant with strong biological toxicity to aquatic organisms and humans. In this research, electrochemical oxidation process with Ti/RuO2 as the anode has been used to degrade aniline-containing wastewater on a laboratory scale. The influence of anode materials, …

Industrial adaptability of each treatment method of copper-containing wastewater. In the treatment of CCW, according to the different materials and devices required, each treatment method is affected by different factors, such as temperature, initial concentration of solution, and pH value; thus each original or improved treatment …

It has been applied in integrating production capacity and pollution control for its significant superiority and potential in heavy metal-containing wastewater (HMW) treatment. The main points of this review are as follows: (1) An introduction to MECs, including their operating principles and voltage losses.