Monday, July 9, 2012

CAPpings - India - 87 fell ill with complaints of nausea, diarrhoea and vomiting after drinking contaminated water in Gujarat. Contamination due to leakage


At least 87 people fell ill after drinking contaminated water in Mithala Nagri extension area here today, health officials said. According to a local person, the drinking water pipeline pass through main sewer line and sometimes due to leakage the water gets contaminated.



At least 87 people fell ill after drinking contaminated water in Mithala Nagri extension area here today, health officials said. The victims complained of nausea, vomiting, and diarrhoea after drinking the water, they said.

Eleven persons with symptoms of acute gastro, were admitted to local Civil hospital, officials said adding that they a survey had been conducted in the locality, following a number of complaints of this nature.

Around 87 patients, with complaints of nausea, diarrhoea and vomiting were examined today. Out of them, 60 suffered from minor problems, while 11 persons were admitted to district civil hospital," District Surveillance Officer Dr M R Deriwala said.

According to a local person, the drinking water pipeline pass through main sewer line and sometimes due to leakage the water gets contaminated.

A similar incident had been taken place in the same locality two years back, in which, 50 people had fallen ill, he added

Article Source: http://www.business-standard.com/generalnews/news/87-fell-ill-after-drinking-contaminated-water/29908/
Publication Date: 09 July 2012

Saturday, July 7, 2012

CAPpings - USA - Corrosion halts Global Production of Stryker Orthopedic metal-on-metal hip implants

Corrosion halts Global Production of Stryker Orthopedic devices. Fretting and/or corrosion of metal-on-metal hip implants could cause pain, swelling and tissue damage




Orthopedic devices maker Stryker recalls a pair of metal-on-metal hip implants and halts global production after discovering potential for "fretting and/or corrosion" that could cause pain, swelling and tissue damage.

Orthopedic devices giant Stryker (NYSE:SYK) announced recall of a pair of hip implants over concerns that the devices may be prone to "fretting and/or corrosion at or about the modular-neck junction," which may lead to pain, swelling and adverse reactions in surrounding tissue.

The recall affects the company's Rejuvenate Modular and ABG II modular-neck hip stems, and Stryker decided to terminate global production of the devices after discovering a potential trend in post-market surveillance data.

"While modular-neck stems provide surgeons with an option to correct certain aspects of a patient's anatomy and hip biomechanics, given the potential risks associated with fretting and corrosion at the modular neck junction, Stryker Orthopaedics decided to take this voluntary action," hip reconstruction vice president and general manager Stuart Simpson said in prepared remarks.

Article Source: https://www.massdevice.com/news/flash-stryker-recalls-pair-metal-hip-implants-halts-global-production
Publication Date: 06 July 2012

CAPpings - India - Poison potion in pipe leak pang in Bihar - Corrosion leads to contamination of drinking water - Hundreds of people have started suffering from diarrhoea

Poison potion in pipe leak pang in Bihar. Leaks in supply pipelines have left residents of a major portion of the town high and dry this monsoon, compelling them to quench their thirst with water filled with mud and dirt. Hundreds of people have started suffering from diarrhoea with Jaiprakash Narayan Hospital alone receiving 33 patients from Iqbal Nagar near Ramshila hills in the past two days.

Leaks in supply pipelines have left residents of a major portion of the town high and dry this monsoon, compelling them to quench their thirst with water filled with mud and dirt. The result is predictable; hundreds have started suffering from diarrhoea with Jaiprakash Narayan Hospital alone receiving 33 patients from Iqbal Nagar near Ramshila hills in the past two days. “Eighteen of them were admitted today,” hospital deputy superintendent S.Z. Ahsan told The Telegraph.

“They are suffering from diarrhoea because of drinking contaminated water,” he said, adding that the residents were prone to suffer from typhoid, jaundice and even acute encephalitis syndrome if they drink such water. Not that the residents have an option to get pure drinking water. Sources said water supplied through pipelines has become polluted with rainwater seeping into them through the leakages.

A laboratory test of water sample, collected from Gurudwara Road, revealed that it had turbidity much higher than a human system can tolerate. “The test conducted at the laboratory of the public health and engineering department showed that the turbidity of water is 10 times higher than the desired level and five times higher than the permissible limit. The laboratory has declared the water unfit for consumption,” a source said.

Article Source: http://www.telegraphindia.com/1120625/jsp/bihar/story_15652334.jsp
Publication Date: 25 June 2012

CAPpings - India - Corrosion of Drinking water pipelines laid inside sewage lines leads to contamination of water supplied to the public in Nagpur

Nagpur: Most water pipelines have been laid inside sewage lines and storm water drains. The pipelines have rusted and developed leaks in many places. The sewage and drain water enters the pipeline when there is no water supply, thus contaminating the drinking water.



NMC corporators tell of water pipes laid in sewage lines, storm drains

NAGPUR: In a shocking revelation, it has come to light that drinking water pipelines have been laid inside sewage lines and also storm water drains at some places in the city. This is said to be the main reason for the contaminated water supply in parts of Central and North Nagpur.

"Citizens from Santosh Nagar, Mehboobpura, Pandey ki Basti, Yogi Arvind Nagar, Sarwarabad, Hamid Nagar, Sangham Nagar and Yashodhara Nagar have been worst affected. Most water pipelines in these areas have been laid inside sewage lines and storm water drains. The pipelines have rusted and developed leaks in many places. The sewage and drain water enters the pipeline when there is no water supply, thus contaminating the drinking water. The first water received when supply resumes is yellowish. Some areas also get blackish water when supply resumes," he said.

Article Source: http://articles.timesofindia.indiatimes.com/2012-06-23/nagpur/32381587_1_sewage-lines-water-pipelines-storm-water-drains
Publication Date: 23 June 2012

Thursday, July 5, 2012

CAPpings - India - Major leakages in the main pipeline near Thuvariman and Melakkal leading to drinking water shortage in Madurai, Tamilnadu

Major leakages in the main pipeline near Thuvariman and Melakkal leading to drinking water shortage in Madurai. Every morning, the complaints on water shortage by residents have become a big problem


Council meet awash with water scarcity issue
Commissioner of Madurai Corporation clarified that major leakages in the main pipeline near Thuvariman and Melakkal was the reason behind the short supply.

Ruling party councillors charged the Corporation officials of creating an artificial drinking water shortage in the city at the council meeting here on Friday. However, Commissioner clarified that major leakages in the main pipeline near Thuvariman and Melakkal was the reason behind the short supply. The leaks would be plugged on July 3 and 4, he said.

Zonal chairperson said that he had been complaining of short supply of water in his zone for the past three months but officials showed no sign of attending to it. “Every morning, the complaints on water shortage by residents have become a big problem,” he said.

Mayor pointed out that there were problems in bringing water from Pannaipatti water treatment plant owing to a leakage. Ruling party member complained that poor quality of work in execution of the second drinking water pipeline for the city during the earlier rule was the reason for the frequent disruption of water supply.

Article Source: http://www.thehindu.com/news/cities/Madurai/article3588603.ece
Publication Date: 30 June 2012


Tuesday, July 3, 2012

CAPpings - India - A large portion of Delhi's water is not fit drinking. MCD report identifies Corrosion as the culprit

A recent survey by the Municipal Corporation of Delhi created ripples in the city with revelations that a large portion of Delhi’s water is not fit for drinking. At least 81 out of 116 water samples collected by MCD contain physical impurities. The reason for such a situation is the use of old and corroded water pipes.


MCD report pins DJB for not ensuring clean supply

A recent survey by the Municipal Corporation of Delhi created ripples in the city with revelations that a large portion of Delhi’s water is not fit for drinking. At least 81 out of 116 water samples collected by MCD contain physical impurities.

The reason for such a situation is the use of old and corroded water pipes. Some public water pipes also run parallel to sewer lines in the Capital. So whenever there is a leakage or a pipe breaks due to corrosion, sewer water enters into drinking water pipes. “We gave a list of 1,000 such pipelines that needed to be repaired or replaced. But DJB took care of only 50 pipes in the last one year,” said Dr Monga.

Article Source: http://www.deccanherald.com/content/257564/mcd-report-pins-djb-not.html
Publication Date: 16 June 2012

Monday, July 2, 2012

CAPpings - India - A constructor's perspective on Corrosion of RCC structures in Coastal Areas


Corrosion of reinforcing steel is one of the most important causes of deterioration of concrete structures in coastal environment



Steel and other ferrous metal along the coastline are susceptible to corrosion, which is mainly initiated by chloride ions present in the sea salts. It is further sustained by the oxygen present in the atmosphere, which diffuses through the moisture film to the surface of the metal.

Corrosion of reinforcing steel is one of the most important causes of deterioration of concrete structures in coastal environment. High permeability concrete, poor design detailing and construction defects such as inadequate depth of cover allow the ingress of salt and moisture into the concrete. High concentration of salt and moisture result in accelerated corrosion of reinforcing steel thereby significantly deteriorating the concrete structure.

Concrete structures in coastal areas can be divided into two categories based on their exposure: direct and indirect. Direct exposure includes structures that are fully or partially submerged and indirect exposure includes structures that do not come into direct contact with seawater. Buildings along the coastline are examples of indirect category of exposure.

Corrosion is commonly associated with deposition of sea salt in presence of moisture on steel and light metals. Chloride is the most significant corrosive species in the salt particles. Corrosion is influenced by the amount of salt on the metal surface and related to speed and direction of wind, distance of structure from the shore, elevation of the structures, degree of sheltering and frequency and amount of rain washing. Other factors that influence corrosion include time of wetness, relative humidity, metal surface temperature etc. Normal steel has poor resistance in coastal atmosphere and hence requires protection for durability.

When steel reinforcement corrodes, the corrosion product occupies more than three times the volume of the original steel, exerting great disruptive tensile stress on the surrounding concrete, leading to further cracking, more weather access and further corrosion. In mild cases, rust staining occurs whereas in more serious cases severe spalling of concrete may occur and ultimately the concrete members may fail completely.

Article Source: http://theconstructor.org/tips/rcc-structures-in-coastal-areas/2216/

 Image Source: Public Domain

Sunday, July 1, 2012

CAPpings - India - Musical Instruments - Are Guitars built in areas at Low Humidity suitable for High Humid Places? - Corrosion annoys Guitarists.



Corrosion of Guitar Strings due to high humidity disturbs a Guitarist from India



Guitars suited for high humidity?

I live in a place (in India) that is very humid. The monthly average afternoon relative humidity hovers between 65% and 80% across the twelve months. The monthly average morning relative humidity is anywhere between 85% and 92%. I was trying to buy a guitar (built in a controlled workshop relative humidity level of 45%) from a luthier in Sweden but abandoned the idea because he too agreed with me that the humidity here could be a problem. Is getting a guitar built in a workshop set at a high relative humidity the only way to go? I know it's highly improbable but I will ask this anyway at the risk of sounding dumb! Would I be able to find a good luthier based in a place with similar humidity conditions as I described above who builds under the normal climatic conditions of that place, or who build guitars specifically for humid places? My budget is 4500 USD and I prefer a Spruce/Maple combination (just in case it helps respondents).











Article Source: http://www.classicalguitardelcamp.com/viewtopic.php?f=107&t=67037
Publication Date: 18 March 2012