Sustainable metallic nanomaterials based wastewater treatment strategies: Achievements, challenges and future perspectives

Chemosphere ◽  
2021 ◽  
pp. 132606
Author(s):  
Shakeel Ahmad Bhat ◽  
Farooq Sher ◽  
Mariam Hameed ◽  
Omar Bashir ◽  
Rohitashw Kumar ◽  
...  
2002 ◽  
Vol 45 (12) ◽  
pp. 315-320 ◽  
Author(s):  
I. Sekoulov

The sustainable development of environmental protection is a newly created philosophy. It means continuous development of better protection of the air, soil, water and resources, used from the industry, to be saved also for future generations. The globalization of the economy is another process, which interferes with environmental ideas, and an equilibrium with the socio-eco-sustainable development is wanted. The industry is subjected to big changes depending on economic development. Thus the treatment plants at the end of the pipe must be constructed with maximum flexibility. A removal of constructed devices, if not necessary, must be considered from the beginning as a possibility. Priority is given to integrated production processes solving wastewater problems directly by production devices. The treatment of the process wastewater streams separately will become more important. The end of the pipe solutions will be less complicated and more reliable. The reuse of valuable waste substances and treated water will reduce the total cost of the treatment plants substantially.


Author(s):  
Andre Russowsky Brunoni ◽  
Bernardo de Sampaio Pereira Júnior ◽  
Izio Klein

Bipolar disorder is a prevalent condition, with few therapeutic options and a high degree of refractoriness. This justifies the development of novel non-pharmacological treatment strategies, such as the non-invasive techniques of transcranial magnetic stimulation (TMS) and transcranial direct current stimulation (tDCS), as well as the invasive techniques of deep brain stimulation (DBS) and vagus nerve stimulation (VNS). In this chapter, we provide a summary of the development of the techniques as well as the studies carried out with patients with bipolar disorder. Although many promising results regarding the efficacy of theses techniques were described, the total number of studies is still low, highlighting the need of further studies in larger samples as to provide a definite picture regarding the use of clinical neuromodulation in bipolar disorder.


Author(s):  
JUHI SHARMA ◽  
PAWAN KUMAR JAIN ◽  
VAISHALI VISHWAKARMA ◽  
ANKITA SHRIVASTAVA

State of symbiosis is created among the species that are found in naturally existing biofilms. Biofilm formation provides protection against toxic shocks, mechanical stress, and predation. Biofilm can play an important role in wastewater treatment technologies and on the other hand could also lead to plague water. Biofilm-based treatments have been traditionally used for the treatment of water but the recent development in the stream has boosted the use of biofilm in various strategies of waste water treatment especially for strategies related to BOD and nutrients. However, the blueprint and execution of this idea is still being worked on due to the problems which arise in the implementation such as corroding pipes, increasing head loss, allowing pathogens to persist in distribution systems, and fouling membrane processes. Design for choice of species for biofilm processes in particular techniques is important wastewater treatment. All these data are essential to develop the performance, effectiveness and constancy of biofilm-based wastewater treatment strategies.


2019 ◽  
Vol 70 (1) ◽  
pp. 275-277
Author(s):  
Costel Bumbac ◽  
Elena Manea ◽  
Alina Banciu ◽  
Catalina Stoica ◽  
Ioana Ionescu ◽  
...  

The growth of population has been linked with the increase usage of chemical compounds design for domestic and industrial use. At its turn, the increased amount of the chemical compound puts an enhanced stress on the environment. In such scenario, the waste management, including the wastewater treatment strategies have become an important part for the environmental protection. Unfortunately, the wastewater treatment procedures have several components which could be improved. Among them aeration process and biomass sedimentation have been the most stringent to tackle, since the aeration alone consume more than 60% from wastewater treatment energy cost. In this study, we proposed a new microalgae-bacteria activated sludge granule which could be an economical and technological solution to the above mentioned issues such as aeration and sedimentation. Moreover, during this study we characterized the physical, morphological and chemical characteristic of the newly formed granules by advances techniques such as electronic and correlative microscopy.


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