Helminth ova control in wastewater and sludge for advanced and conventional sanitation

2007 ◽  
Vol 56 (5) ◽  
pp. 43-51 ◽  
Author(s):  
B. Jiménez ◽  
C. Maya ◽  
M. Galván
Keyword(s):  
Water Reuse ◽  
Research Work ◽  
Analytical Techniques ◽  
Practical Experience ◽  
World Health ◽  
The World ◽  
Increase Productivity ◽  
New Guidelines ◽  
Health Organization ◽  
Technological Options

Worldwide, the most important reuse of wastewater, in volume, is agricultural irrigation. Therefore, there is a need to properly treat wastewater for such purpose, considering the removal of pathogens while leaving suitable amounts of nutrients and other compounds to increase productivity. Helminth ova are one of the main targeted pathogens in the new guidelines for water reuse in agriculture and aquaculture issued in 2006 by the World Health Organization. However, relatively little research has been done recently on how to remove and inactivate helminth ova from wastewater and sludge and recommendations given several decades ago are still used, but when put into practice, particularly in developing countries, produce unsatisfactory results. One problem is that these criteria were developed using inaccurate analytical techniques and the other is the large number and variety of helminth ova species found in wastewater and sludge from the developing world. In fact, the few technological options to remove and inactivate helminth ova come from research performed using wastewater and sludge with low helminth ova content, and refer almost only to Ascaris (one type of helminth). This paper summarises recent research work and results from practical experience concerning helminth ova control for advanced and conventional sanitation.

scholarly journals DETERMINATION OF LEAD FROM GOLD ORE USING PROTON INDUCED X-RAY EMISSION TECHNIQUE

2021 ◽  
Vol 5 (1) ◽  
pp. 490-494
Author(s):  
A. Bello
Keyword(s):  
Research Work ◽  
World Health ◽  
Elemental Content ◽  
Northern Nigeria ◽  
X Ray ◽  
Mining Sites ◽  
The World ◽  
Health Organization ◽  
Pb Concentration

The impetus for this research work arose from alleged signs of Lead (Pb) poisoning from Medicines Sans Frontiers (Doctors without Borders).These poisonings were narrowed down to areas of solid minerals mining and extraction in Northern Nigeria. The aim of this research work is to identify mining Sites with ores having high Pb concentration. Fifteen samples were collected from areas located at approximately latitudes 𝟶𝟶70𝟶8.69𝟶ˈE and longitudes 𝟶90 34ˈ224ˈˈN and interrogated using Proton induced X-ray emission (PIXE) technique for their elemental content. PIXE was chosen because of its sample nondestructive and it does not contaminate the environment. The result obtained varied between 24.3 – 632303.3 ppm. The world Health Organization recommends that sites with Pb concentration above 400 ppm are inimical to human health and ordered that children be evacuated from such areas. Exposure to Pb poisoning may cause anemia, weakness, and Kidney and brain damage; particularly in children.

Novel Coronavirus in India Outbreaks around World: A Statistical Analysis of Odisha, India & World

Coronaviruses ◽  
2020 ◽  
Vol 01 ◽  
Author(s):  
Debabrata Singh ◽  
Suman Sekhar Sarangi ◽  
Milu Acharya ◽  
Surjeet Sahoo ◽  
Shakti Ketan Prusty ◽  
...  
Keyword(s):  
Research Work ◽  
World Health ◽  
Swine Flu ◽  
Protective Measures ◽  
The Public ◽  
The World ◽  
Rate Of Recovery ◽  
The Government ◽  
Novel Coronavirus ◽  
Health Organization

Background: The Public Health Emergency of International Concern by the World Health Organization (WHO) declared novel Coronavirus (nCoV-2019) outbreaks in 2019 and is pandemic. Methods: This research work made an analysis of the nCoV-2019 outbreak in India solely based on a mathematical model. Results: The historical epidemics in the world are plague, AIDS, Swine flu, ebola, zika virus, Black Death and SARS. Considering the model used for SARS 2003, the present research on Covid-2019 estimates characteristics of rate of infectious (I) and rate of recovery(R) which leads to estimation the I and R leads to predict the number of infectious and recovery. Through ruling out the unpredictable, unreasonable data, the model predicts that the number of the cumulative 2019-nCoV cases may reach from 3398458(mid of May) to 15165863, with a peak of the unrecovered infective (2461434-15165863) occurring in late April to late July. In this paper we predicate how the confirmed infected cases would rapidly decrease until late March to July in India. We also focus how the Government of Odisha (a state of India) creates a history in the protective measures of Covid-19. Conclusion: The growing infected cases may get reduced by 70-79% by strong anti-epidemic measures. The enforcement of shutdown, lockdown, awareness, and improvement of medical and health care could also lead to about one-half transmission decrease and constructively abridge the duration of the 2019 n-CoV.

scholarly journals Review Study on Sciencedirect Library Based on Coronavirus Covid-19

2020 ◽  
Vol 4 (2) ◽  
pp. 46
Author(s):  
Muzhir Shaban Al-Ani ◽  
Dimah Mezher Al-Ani
Keyword(s):  
Research Work ◽  
The United States ◽  
World Health ◽  
Key Factors ◽  
Human Immune System ◽  
Research Papers ◽  
The World ◽  
The Subject ◽  
Human Immune ◽  
Health Organization

Several years ago, China and the United States of America began experimenting with the coronavirus, which lives in the bat. It is not known until now how the virus spread and how it extended to all countries of the world. However, it is certain that this virus first appeared and spread was at the end of 2019 and in the Chinese city of Wuhan, especially in markets close to laboratories that are working on this virus. At the beginning of the year 2020, this virus began to spread very widely all over the world and began killing thousands of people every day. The world economy was destroyed until the World Health Organization considered it a pandemic. As for the research aspect, the researchers started the research work on this pandemic from many aspects, including medical, statistical, managerial, healthcare, and others. A statistical analysis depends many key factors that have been studied. This study was conducted on April 11, 2020, where a large number of research papers were downloaded using the keywords coronavirus disease (COVID)-19, which were applied in the Sciencedirect library that was examined on 100 research papers only. The obtained results indicated that most of the research papers that worked on the subject of COVID-19 confirmed that this virus infects the human respiratory system, which in turn leads to shortness of breath and death. Here, it must be noted that the human immune system has a major role in the process of overcoming this virus and gradual recovery. The obtained analysis indicated that the main fields of coronavirus are: Medicine 42%, statistics 21%, healthcare 19%, and management 18%. Through this study, it became clear that China is the first country in terms of the number of researchers and also in terms of the number of research papers related to the COVID-19.

Helminth ova removal from wastewater for agriculture and aquaculture reuse

2007 ◽  
Vol 55 (1-2) ◽  
pp. 485-493 ◽  
Author(s):  
B. Jimenez
Keyword(s):  
Developing Countries ◽  
Wastewater Treatment ◽  
Health Risk ◽  
Water Reuse ◽  
Wastewater Reuse ◽  
World Health ◽  
Disinfection Methods ◽  
The World ◽  
Main Target ◽  
Health Organization

In the new version of the World Health Organization (WHO), water reuse guidelines helminth ova are considered one of the main target pollutants to be removed from wastewater reuse for agriculture and aquaculture purposes. In spite of this, along with the fact that helminth ova have been considered the main health risk to wastewater reuse for agriculture for at least 20 years, relatively little research has been done to control helminth ova in the wastewater treatment field. This paper addresses (1) characteristics of helminth ova and differences with microorganisms; (2) the most frequent helminth ova genus found in wastewater; (3) helminth ova content in developed and developing countries wastewater; (4) reasons why conventional disinfection methods cannot be applied; (5) main removal mechanisms; and (6) processes that in practice have effectively removed or inactivated helminth ova.

Erstes Instrument zur standardisierten Erfassung der Teilhabe Behinderter

2017 ◽  
Vol 79 (07) ◽  
pp. 526-527
Keyword(s):  
World Health Organization ◽  
World Health ◽  
The World ◽  
Health Organization ◽  
Menschen Mit Behinderung

Coenen M et al. [Recommendation for the collection and analysis of data on participation and disability from the perspective of the World Health Organization]. Bundesgesundheitsblatt Gesundheitsforschung Gesundheitsschutz 2016; 59: 1060–1067 Um eine gleichberechtigte Teilhabe an der Gesellschaft von Menschen mit Behinderung zu ermöglichen, werden zunächst Daten zu vorhandenen Einschränkungen gebraucht. Erst wenn diese detailliert erhoben wurden, können Konzepte zur Beseitigung von Problemen entwickelt werden. Ein standardisiertes Erhebungsinstrument für alle Aspekte der Funktionsfähigkeit fehlte jedoch bisher.

Coronavirus diseases and pregnancy: COVID-19,SARS, and MERS

2020 ◽  
pp. 276-289
Author(s):  
Mobina Fathi ◽  
Kimia Vakili ◽  
Niloofar Deravi
Keyword(s):  
Pregnant Women ◽  
Intrauterine Growth Retardation ◽  
Negative Impact ◽  
World Health ◽  
Wuhan City ◽  
Intrauterine Growth ◽  
Exponential Increase ◽  
The World ◽  
Health Organization ◽  
Respiratory Droplets

Around the end of December 2019, a new beta-coronavirus from Wuhan City, Hubei Province, China began to spread rapidly. The new virus, called SARS-CoV-2, which could be transmitted through respiratory droplets, had a range of mild to severe symptoms, from simple cold in some cases to death in others. The disease caused by SARS-CoV-2 was named COVID-19 by WHO and has so far killed more people than SARS and MERS. Following the widespread global outbreak of COVID-19, with more than 132758 confirmed cases and 4955 deaths worldwide, the World Health Organization declared COVID-19 a pandemic disease in January 2020. Earlier studies on viral pneumonia epidemics has shown that pregnant women are at greater risk than others. During pregnancy, the pregnant woman is more prone to infectious diseases. Research on both SARS-CoV and MERS-CoV, which are pathologically similar to SARS-CoV-2, has shown that being infected with these viruses during pregnancy increases the risk of maternal death, stillbirth, intrauterine growth retardation and, preterm delivery. With the exponential increase in cases of COVID-19 throughout the world, there is a need to understand the effects of SARS-CoV-2 on the health of pregnant women, through extrapolation of earlier studies that have been conducted on pregnant women infected with SARS-CoV, and MERS-CoV. There is an urgent need to understand the chance of vertical transmission of SARS-CoV-2 from mother to fetus and the possibility of the virus crossing the placental barrier. Additionally, since some viral diseases and antiviral drugs may have a negative impact on the mother and fetus, in which case, pregnant women need special attention for the prevention, diagnosis, and treatment of COVID-19.

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