Tag Archives: sewage

You Probably Don’t Want To Know About Haiti’s Sewage Problems

You Probably Don’t Want To Know About Haiti’s Sewage Problems. NPR: Goats and Soda, July 2017.

People dump trash and raw sewage into canals that run through Port-au-Prince, Haiti. When it rains, the canals overflow and flood poor neighborhoods. John W. Poole/NPR

People dump trash and raw sewage into canals that run through Port-au-Prince, Haiti. When it rains, the canals overflow and flood poor neighborhoods. John W. Poole/NPR

The rain began on Good Friday. It fell into the roofless ruins of Port-au-Prince’s Catholic cathedral. It swirled through stalls in the market downtown. In the hills above Haiti’s capital, the rain ran off the clay roof tiles of upscale homes.

No matter where the rain fell, it was all destined for the same place: the system of concrete canals that cut through the city and down to the sea.

At the edge of the city next to the shore, the rain pounded on the zinc roof of Jean Claude Derlia’s single-story cinder block home. His neighborhood, Project Drouillard, is dense with families packed into homes like his. Most people who grew up in Project Drouillard have stayed, as he has. The community is close-knit, poor and socially isolated from downtown Port-au-Prince.

It is also extremely vulnerable to flooding from the canal full of trash and raw sewage that bordered it on one side. After a rainstorm a few years ago, Derlia had been swept away by a wave of sludge and nearly died before neighbors fished him out. He was sick for weeks after it happened, but he survived.

Read the complete article.

USA – EnerTech Transforms Sewage into Solid Fuel

Atlanta, Georgia-based EnerTech Environmental commissioned its first biosolids-to-renewable energy facility about 50 miles east of Los Angeles, California.

Designed to process over 270,000 wet tons of biosolids (household sewage) per year the Rialto SlurryCarb™ Facility will annually generate over 60,000 tons of renewable fuel, called E-Fuel, for the Southern California area.

E-Fuel produced by the facility is already being used by Southern California cement kilns to offset their coal use and will reduce annual local greenhouse gas emissions by over 80,000 tons.

The facility is a showcase for EnerTech’s patented SlurryCarb™ process. The process uses heat and pressure to remove water from sewage or other biowastes–such as manure or pulp–and transform them into a carbon dioxide-neutral, coal-like fuel.

Biosolids (processed sewage sludge) are a common and easily renewable waste that all communities produce and must manage. In the United States alone, over 7 million tons of biosolids are produced each year.

“This facility provides us with a local, sustainable, and environmentally friendly option for biosolids management,” says Mike Moore, Manager of Environmental Compliance and Regulatory Affairs for the Orange County Sanitation District. “Generating energy from biosolids is a smart solution for both biosolids management and energy generation. People around the country are taking notice.”

The Rialto SlurryCarb™ Facility is providing a long-term biosolids recycling plan for five Southern California municipalities. Customers include Orange County Sanitation District, The County Sanitation Districts of Los Angeles County, and the cities of Rialto, Riverside, and San Bernardino. In addition to providing an environmentally sustainable biosolids management solution for California, the facility is an important contributor to the California economy-creating over 20 green jobs for the surrounding Rialto area.

“This facility represents a major step in energy independence for Southern California,” says Ronald O. Loveridge, Mayor of Riverside. “By converting our biosolids to energy we are reducing our greenhouse gas emissions and ensuring a better future for our community.”

Website: www.enertech.com


Japan: sewage yields more gold than top mines

A sewage treatment facility in [Nagano prefecture,] central Japan has recorded a higher gold yield from sludge than can be found at some of the world’s best mines. [T]he high percentage of gold found at the Suwa facility was probably due to the large number of precision equipment manufacturers in the vicinity that use the yellow metal. The facility recently recorded finding 1,890 grammes of gold per tonne of ash from incinerated sludge [far higher than the 20-40 grammes per tonne] of Japan’s Hishikari Mine, one of the world’s top gold mines.

The prefecture […] expects to earn about 15 million yen [US$ 168,000] for the fiscal year to the end of March from the gold it has retrieved from the ashes of incinerated sludge.

Source: Miho Yoshikawa, Reuters, 30 Jan 2009

Global study shows widespread sewage use on farms

STOCKHOLM, Sweden: People in developing countries are facing growing health risks caused by the widespread use of raw sewage to irrigate crops, according to a study unveiled Monday at a global water conference in Sweden.

The report, by the International Water Management Institute, says more than half of farmland near 70 percent of cities in Third World countries is watered with sewage that threatens to spread epidemics.

“Irrigating with wastewater isn’t a rare practice limited to a few of the poorest countries,” said Liqa Raschid-Sally, a researcher at the institute. “It’s a widespread phenomenon, occurring on 20 million hectares (50 million acres) across the developing world, especially in Asian countries, like China, India and Vietnam, but also around nearly every city of sub-Saharan Africa and in many Latin American cities.”

She was speaking Sunday at the start of World Water Week, a conference attended by 2,500 scientists, politicians and officials from 140 countries. The United Nations has named 2008 the International Year of Sanitation.

Experts said that 1.4 million children die every year from diarrhea-related diseases and poor hygiene, and described the global sanitation crisis as “the world’s largest environmental problem.”
An increasing demand for water and food has spurred the use of sewage to water crops but in many cases is the only form of irrigation for farmers who lack clean water, the study showed. It is mostly used to produce vegetables and cereals, and poses a major health risk to consumers of uncooked vegetables.

However, the report said sewage also provides a livelihood for many by making possible the cultivation of land, and it recommends an increase in purifying water supplies rather than a total ban on the use of wastewater.

More – International Herald Tribune

Gaza – Sewage system in crisis

JERUSALEM/GAZA, 25 March 2008 (IRIN) – Design errors, a fast growing population, the halting in recent years of development projects, and restrictions on imports have rendered the Gaza Strip’s sewage system incapable of handling the enclave’s waste, experts said.

The result is the pumping of partially treated or untreated sewage directly into the sea and the seepage of dirty water into the ground and groundwater.

“The environmental situation in Gaza is bad and getting worse,” an International Committee of the Red Cross (ICRC) expert on water and sanitation said in an interview with IRIN.

Read MoreIRIN

Palestine, Gaza: sewage and water disasters looming

23 Jan 2008, Source Weekly

Various recent news media report from Gaza that the water and waste water treatment facilities there suffer badly from Israel’s security concerns about importing of energy, pumps, pipes and other spare parts in the Hamas controlled area. Since May 2007, 149 public wells in Gaza have had too little fuel to operate and have not been maintained due to the lack of parts. As a result 15 percent of Gaza’s population (225,000 people) get water for only two hours per day.

Furthermore, the poor quality water has not been tested for more than a year, because laboratories have been unable to import chemicals to test it. Tests carried out by the World Health Organization (WHO) several years ago concluded that Gaza’s water is unfit for human consumption.

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