Sentences with phrase «with algae growth»

He said although the current water purification mechanism used by the Ghana Water Company Limited (GWCL) met World Health Organisation (WHO) guidelines, the guidelines were accepted at a time that Ghana did not have problems with algae growth in water sources.

Not exact matches

To grow these microorganism cultures in the lab, researchers house samples in petri dishes lined with a nourishing gel mixture derived from algae called agar growth media.

Algae production consumes more energy, has higher greenhouse gas emissions and uses more water than other biofuel sources, like corn, switch grass and canola, Clarens and his colleagues found by using a statistical model to compare growth data of algae with conventional cAlgae production consumes more energy, has higher greenhouse gas emissions and uses more water than other biofuel sources, like corn, switch grass and canola, Clarens and his colleagues found by using a statistical model to compare growth data of algae with conventional calgae with conventional crops.

Additionally, it is difficult to find land with suitable characteristics for algae growth and there are technical challenges of scaling up lab / pilot projects and cost effectiveness.

Scientists on the Indian - German expedition, known as LOHAFEX, grew a 300 - km2 patch of algae in hopes that the plants» carbon would fall kilometers below, taking with it the atmospheric carbon it had pulled in during growth.

Researchers in Hawaii found that guppies released in the 1920s drove down native fish populations, perhaps by competing with them for food and living space, and had likely changed the cycle of nutrients in water: Guppy - rich areas showed increased levels of dissolved nitrogen — from ammonium in fish urine and gill excretions — which, in turn, stimulated algae growth.

Algae and cyanobacteria are complicated critters: although they can grow in open ponds, unwanted microbial strains can easily contaminate the water and interfere with the growth of the fuel - making strains.

They found the sediments associated with the seagrass reduced algal growth, while the sediments associated with the algae had a positive effect on its growth.

Upon mixing with the surface layer, the water will cause an increase in the growth of filamentous algae and elevate the risk of blue - green algal blooms.

bloom (in microbiology) The rapid and largely uncontrolled growth of a species, such as algae in waterways enriched with nutrients.

The funding was secured with the help of U.S. Sen. Patty Murray, D - Wash., through the 2010 Senate Energy and Water Development appropriations bill and will go to the Washington State Algae Alliance, comprised of WSU, Targeted Growth Inc. of Seattle and Inventure Chemical of Gig Harbor.

Here large heads of common smooth star, smooth and depressed brain corals and yellow porous coral form isolated growths that are surrounded by coral rubble, much of which is coated with red algae.

Little other marine life appears present in the cavern, but the walls above are covered with cornflake algae and isolated growths of gorgonians.

Among an ever expanding (and as Karen Barad might say, «entangled») list, I am inspired by the complex and contradictory city I live in (the city of Chicago) and the incredible community of hard working, sincere, talented artists who I am surround by and have the privilege of working alongside and in collaboration with every day (too many and to diverse to name individually here) / / by mentors A. Laurie Palmer and Claire Pentecost and Anne Wilson and Ben Nicholson / / by Simon Starling and Andrea Zittel and Mark Dion and Sarah Sze and Phoebe Wasburn and Mierele Laderman Ukeles and Joseph Beuys and Eva Hesse and Hans Haacke and Robert Smithson / / by writers and philosophers Karen Barad and Jane Bennett and Rebecca Solnit and Italo Calvino and Steward Brand and the contributors to The Whole Earth Catalog (of which my father gave me his copies) and Ken Issacs and Carl Sagan and Neil deGrasse Tyson and William Cronon and Bruno Latour and Deluze and Guttari and Jack Burnham / / by ideas of radical intimacy and transformation and ephemerality and experimentation and growth and agency and mobility and nomadicism and balance and maintenance and survival and change and subjectivity and hylozoism and living structures / / by mycelium and soil and terracotta and honey and mead and wild yeast and beeswax and fat and felt and salt and sulfur and bismuth and meteorites and microbes and algae and oil and carbon and tar and water and lightening and electricity and oak and maple / / by exploration and navigation and «the Age of Wonder» and the Mir Space Station and the Deep Tunnel Project / / by Lake Michigan and the Chicago River and waterways and canals and oceans and puddles... to name a few.

Re # 49 & # 82 The limitations on the growth of algae in the arctic varies with the season, the effect of sea - ice melting is not as certain as Harold would have us believe: http://www.agu.org/pubs/crossref/2005/2005JC002922.shtml http://www.nurp.noaa.gov/Spotlight/ArcticIce.htm

Agricultural runoff, in combination with increased water temperatures, has caused considerable non-point source pollution problems in recent years, with increased phosphorus and nitrogen loadings from farms contributing to more frequent and prolonged occurrences of anoxic «dead zones» and harmful, dense algae growth for long periods.

«Algaculture facility» generally refers to a system including a reservoir with a growth medium in which algae are cultivated and from which the algae, a consumer of the algae, or a metabolic product or derivative thereof is harvested.

With less sea ice many marine ecosystems will experience more light, which can accelerate the growth of phytoplankton, and shift the balance between the primary production by ice algae and water - borne phytoplankton, with implications for Arctic food wWith less sea ice many marine ecosystems will experience more light, which can accelerate the growth of phytoplankton, and shift the balance between the primary production by ice algae and water - borne phytoplankton, with implications for Arctic food wwith implications for Arctic food webs.

They include seeding the skies with compounds to encourage the formation of low - lying, cooling clouds; building a giant sun - shade in space; and dumping iron in the oceans to encourage the growth of algae that would take in carbon when alive and trap it in on the sea floor when dead.

A shift to «third - generation» biofuels — mainly algae and salt - tolerant «halophytes» irrigated with sea water — leads to 15 % biofuel penetration of the US fuel mix in 2014, with a growth trend of 4 %.

In the long run, the excess algal growth can have devastating impacts on the health and age of a fresh water lake or river, causing eutrophication to speed up, where lakes and other water bodies fill in with dead algae and other organic matter and eventually turn into dry land.

Roof experts tell our researchers that though other components are being added to shingles to hinder algae growth, they still get calls to deal with black marks on relatively new roofs.

They say that while shingle manufacturers offer products treated with copper or zinc to inhibit algae growth, their effect wears down over time.