scholarly journals Recirculation as the form of destination of the Concentrate originated from the Treatment of leachate in landfills by Membrane Processes

2021 ◽  
Vol 42 ◽  
pp. e56
Author(s):  
Marcelo Lippi ◽  
Michelle Bellas Romariz Gaudie Ley ◽  
Gabriel De Pinna Mendez ◽  
Ricardo Abraches Felix Cardoso Junior
Keyword(s):  
Academic Community ◽  
Pollutant Removal ◽  
The Body ◽  
Long Term Effects ◽  
Leachate Treatment ◽  
Operational Conditions ◽  
Treatment Processes ◽  
After Care ◽  
Membrane Treatment

The different methodologies of leachate treatment are widely debated in the literature, promoting a great discussion among the scientific and academic community on the most efficient and propitious methods. Membrane treatment processes, especially Reverse Osmosis (RO), stand out as the best solution. The RO has pollutant removal rates higher than 99%, with operational cost and complexity competitive with other technologies. Its main disadvantage is the concentrated residue generated in the process that covers about 30% of the volume of leachate entering the system. Its recirculation in the body of the landfill arises as an alternative of low destination cost. Its effectiveness is directly related to the method of recirculation along the geological, climatological, technical and operational conditions of the landfills. Although already widespread, the treatment or destination of the concentrate requires a greater technological assertion. Further research is needed on the recirculation methods of the concentrate and its medium and long-term effects on leachate, settlement and landfills after care period. It is important to make a comparative analysis of landfills with similar characteristics, one with and another without recirculation of the concentrate. Alternatives to treat the concentrate are also of great interest whether they are economically viable in real scale. 

scholarly journals Optimising the performance of a lab-scale tidal flow reed bed system treating agricultural wastewater

2004 ◽  
Vol 50 (8) ◽  
pp. 65-72 ◽  
Author(s):  
Y.Q. Zhao ◽  
G. Sun ◽  
C. Lafferty ◽  
S.J. Allen
Keyword(s):  
Tidal Flow ◽  
High Strength ◽  
Pollutant Removal ◽  
Inorganic Pollutants ◽  
Operational Conditions ◽  
Agricultural Wastewater ◽  
Major Route ◽  
Reed Bed ◽  
Ammoniacal Nitrogen Removal

A gravel-based tidal flow reed bed system was operated with three different strategies in order to investigate its optimal performance for the treatment of a high strength agricultural wastewater. According to the three strategies, individual reed beds were saturated and unsaturated with the wastewater for different periods while reasonably stable hydraulic and organic loadings were maintained. Experimental results demonstrated that the system produced the highest pollutant removal efficiencies with a relatively short saturated period and long unsaturated period, highlighting the importance of oxygen transfer into reed bed matrices during the treatment. Significant removals of some major organic and inorganic pollutants were achieved under all three operational conditions. Nitrification was not the major route of ammoniacal-nitrogen removal when the system was under high organic loading. Due to the filtration of suspended solids and the accumulation of biomass, gradual clogging of the reed bed matrices took place, which caused concerns over the long-term efficiency of the tidal flow system.

scholarly journals Human Body Burden of Heavy Metals and Health Consequences of Pb Exposure in Guiyu, an E-Waste Recycling Town in China

2021 ◽  
Vol 18 (23) ◽  
pp. 12428
Author(s):  
Wenlong Huang ◽  
Xiaoling Shi ◽  
Kusheng Wu
Keyword(s):  
Heavy Metals ◽  
Body Burden ◽  
Local Environment ◽  
Waste Recycling ◽  
The Body ◽  
Health Consequences ◽  
Long Term Effects ◽  
Adaptive Immune ◽  
Pb Exposure

Guiyu accommodates millions of tons of e-waste from overseas and domestic sources each year and is notorious for its e-waste dismantling industry. As a consequence, Guiyu has been described as “the world’s most toxic place” and “junk town”. Informal e-waste recycling activities have caused severe pollution to the local environment and are associated with extensive health problems to the residents. This review provides updated insights on the body burden of heavy metals derived from e-waste and health outcomes resulted from lead (Pb) exposure. The review identified that Guiyu has been highly contaminated by heavy metals, especially Pb. Excessive exposure to Pb has been associated with multi-system and long-term effects in neonates and children, covering nervous, cardiovascular, adaptive immune, and hematologic systems as well as chromosome and DNA damage. Our review indicates strong associations that emphasize the need to develop strong regulations for prevention of exposure and health consequences in Guiyu and similar sites around the world.

Environments, Past and Present

2020 ◽  
Author(s):  
Angela Duckworth ◽  
Keyword(s):  
Allostatic Load ◽  
Acute Stress ◽  
The Body ◽  
Physiological Changes ◽  
Long Term Effects ◽  
Flight Response ◽  
Fight Or Flight Response ◽  
The Brain ◽  
Fight Or Flight

For more than a century, scientists have known that acute stress activates the fight-or-flight response. When your life is on the line, your body reacts instantly: your heart races, your breath quickens, and a cascade of hormones sets off physiological changes that collectively improve your odds of survival. More recently, scientists have come to understand that the fight-or-flight response takes a toll on the brain and the body—particularly when stress is chronic rather than acute. Systems designed to handle transient threats also react to stress that occurs again and again, for weeks, months, or years. It turns out that poverty, abuse, and other forms of adversity repeatedly activate the fight-or-flight response, leading to long-term effects on the immune system and brain, which in turn increase the risk for an array of illnesses, including asthma, diabetes, arthritis, depression, and cardiovascular disease. Pioneering neuroscientist Bruce McEwen called this burden of chronic stress “allostatic load.”

Who We Are: The Foundational Forces

2021 ◽  
pp. 65-80
Author(s):  
Sandro Galea
Keyword(s):  
Social Stigma ◽  
The United States ◽  
The Body ◽  
Long Term Effects ◽  
Obesity Epidemic ◽  
Race Politics ◽  
The Social ◽  
To Come ◽  
The Many

This chapter examines the foundational forces that shape health. Even without a pandemic, the United States is faced with public health threats that are shaped by foundational forces. From the political and economic roots of the obesity epidemic, to the social stigma that informs the opioid crisis, to the many structural drivers of climate change, the social, economic, political, and demographic foundations of health are central to the challenges that must be addressed, nationally and globally, in the years to come. Engaging with these forces helped inform the response to COVID-19; they can help in addressing these other challenges as well. And just as a virus can have long-term effects on the body, the pandemic reshaped the societal foundations, with lasting implications for the economy, culture, attitudes towards core issues like race, politics, and more. Whether the experience of the pandemic leads to significant long-term benefits will depend on whether Americans retain the hard lessons of that moment and apply them to foundational forces.

scholarly journals Penyuluhan dan Deteksi Dini Anemia menuju Generasi Berkualitas pada Mahasiswa Kebidanan

2020 ◽  
Vol 1 (1) ◽  
pp. 72-84
Author(s):  
Marlynda Happy Nurmalita Sari ◽  
Dina Dewi Anggraini
Keyword(s):  
Early Detection ◽  
Adolescent Girls ◽  
Perinatal Death ◽  
Work Productivity ◽  
Signs And Symptoms ◽  
The Body ◽  
Long Term Effects ◽  
Adolescent Learning ◽  
Diploma Program

Background: The prevalence of anemia in adolescent girls in Indonesia is still high at 57.1%. As a result of anemia is adolescent learning achievement can decrease, work productivity decreases and body immunity decreases so that the body is easily infected. Long-term effects of anemia in adolescent girls can occur complications of pregnancy and even the risk of maternal and perinatal death. Purpose of this studi is provide counseling and early detection of anemia to Midwifery students as an effort to make them aware in preventing and overcoming anemia. Methods: The target of this activity is 132 students of the Blora Midwifery Diploma Program. This activity is carried out by providing information or knowledge in the form of counseling to students about anemia and followed by history and physical examination. Only students who showed signs and symptoms of anemia who were tested for HB levels were 30 students. Results: Early detection of 30 students there were 53.3% who were not anemic and 46.7% were anemic. Most of the students' menstruation period is 6-7 days which is 73.3%. While the results of counseling some students already understand about anemia. Conclusion: Of the 132 students only 30 showed signs and symptoms of anemia. Hb examination results are almost the same between respondents who are anemic and not anemic. It is hoped that the results of community service activities can be used as an illustration of the incidence of anemia in Midwifery students so that efforts can be made to prevent and manage anemia. Provide motivation and awareness to students to consume nutritious and iron-containing foods or to consume extra blood tablets.

scholarly journals HIGH-POWERED POLICE MOTORCYCLE: MUSCLE DISCOMFORT AMONG MALAYSIAN TRAFFIC POLICE RIDERS

2020 ◽  
Vol 20 (Special1) ◽  
pp. 255-259
Author(s):  
Nur Athirah D ◽  
Karmegam K ◽  
Irniza R ◽  
Shamsul Bahri MT ◽  
Vivien H ◽  
...  
Keyword(s):  
Cross Sectional Study ◽  
The Body ◽  
Long Term Effects ◽  
Contributing Factors ◽  
Cross Sectional ◽  
Traffic Police ◽  
Body Regions ◽  
Lower Back ◽  
Left And Right

Discomfort due to riding a motorcycle is an issue that need to be addressed as it has long-term effects of musculoskeletal disorders on motorcyclists especially among occupational motorcyclist. Thus, this study was conducted to analyse the rating of muscle discomfort and correlation with the risk factors among traffic police riders. A cross-sectional study was carried out among 137 male traffic police riders (high-powered motorcycle) with the age between 20 to 39 years old. The 100-mm visual analogue scale questionnaire included ratings of perceived discomfort scales for 20 specific body regions was used in the study. The results indicate that the lower back (left and right) were the highest mean of discomfort which were 56.6 mm and 55.9 mm respectively. This followed with right (48.5±36.2 mm) and left (48.4±30.3 mm) upper back, and right hand (47.0±33.0 mm). The mean of overall discomfort ratings for all regions were more than 20 mm.  Besides, there is a strong positive significant correlation between duration of ridings (hours) and overall discomfort ratings (p<0.01, r=0.785) and moderate positive correlation between year of traffic police motorcycle riding experience and overall discomfort ratings (p<0.01, r=0.410). As a conclusion, cumulative riding hours, riding experience and no support of the back area of the body in motorcycle seat, are the most concern in this study as this are the contributing factors to the muscle discomfort among traffic police riders while riding high-powered motorcycle. Thus, this study suggested an additional feature is needed in current motorcycle design in order to enhance comforts of traffic police riders. Also, it will improve the condition of traffic police riders’ discomfort and indirectly also improve their work and health performance as well as productivity.

The Effects and Benefits of Singing Individually and in a Group

2018 ◽  
pp. 918-934
Author(s):  
Töres Theorell
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Lung Function ◽  
The Body ◽  
Tnf Alpha ◽  
Long Term Effects ◽  
Regenerative Activity ◽  
The Brain ◽  
Regular Practice

This chapter is devoted to the biology of singing. Immediate effects have been extensively scientifically studied. Breathing and its synchronization with heart rate variability has been an important theme. Endocrine (endorphins, oxytocin, cortisol, testosterone) and immunological (TNF alpha, fibrinogen, immunoglobulines) reactions have also been studied during singing. In collective singing, cohesiveness is a major factor. Singing in a group during a choir rehearsal has stronger stimulation effects on oxytocin secretion than chatting in the same group. High levels of oxtytocin coincide with strong feelings of cohesiveness. In addition, oxytocin dampens anxiety and pain. Long-term effects of singing training and regular practice have been less extensively studied but there is evidence that singing training may influence such things as the brain´s development, the ability to synchronize heart and lung function, and the level of regenerative activity in the body.

scholarly journals SARS-CoV-2 (COVID-19) and the Endocrine System

2020 ◽  
Vol 4 (11) ◽  
Author(s):  
Michelle D Lundholm ◽  
Caroline Poku ◽  
Nicholas Emanuele ◽  
Mary Ann Emanuele ◽  
Norma Lopez
Keyword(s):  
Severe Disease ◽  
Clinical Manifestations ◽  
Endocrine System ◽  
The Body ◽  
Active Area ◽  
Gonadal Function ◽  
Long Term Effects ◽  
The World ◽  
The Impact

Abstract As SARS-CoV-2 (COVID-19) overtakes the world, causing moderate to severe disease in about 15% of infected patients, COVID-19 is also found to have widespread effects throughout the body with a myriad of clinical manifestations including the endocrine system. This manuscript reviews what is known about the impact of COVID-19 on the pathophysiology and management of diabetes (both outpatient and inpatient) as well as pituitary, adrenal, thyroid, bone, and gonadal function. Findings in this area are evolving, and long-term effects of infection remain an active area of further research.

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