About 1,607,369 results (5,637 milliseconds)

US20150210575A1 - Biological treatment systems utilizing ...

https://patents.google.com/patent/US20150210575A1/ar
nitrogen in its various forms e.g., nitrites, nitrates, ammoniums, ammonia; nitrogen causes algal blooms in oceans, pollutes lakes and rivers, and pollutes ...

Small Scale Rainbow Trout Farming - Trout Farming Water Quality ...

https://sites.google.com/view/smallscalerainbowtroutfarm/trout-farming-water-quality-management
Nitrates are less toxic to fish than ammonia and nitrites, but excessive levels can still lead to water quality degradation. ... If turbidity is caused by algae ...

EP2500722B1 - Method of determining a concentration of nitrate ...

https://patents.google.com/patent/EP2500722B1/fi
While nitrate exposure is most easily caused by drinking water, it can also be caused by eating vegetables with high levels of nitrate. ... algal blooms is ...

US20170029303A1 - Biological filtration system for removal of ...

https://patents.google.com/patent/US20170029303A1/en
As a result, the algae filtration stage may reduce the problems caused by the accumulation of nitrate and the necessary frequency of partial water changes in ...

WO2023061961A1 - Method for the killing, inactivating, or inhibiting ...

https://patents.google.com/patent/WO2023061961A1/en
... algae or algae capable of causing Harmful Algal Bloom (HAB) in marine, brackish or freshwater environments using an effective amount of a lipopeptide ...

US6096215A - Liquid bio-nutrients for use in biological wastewater ...

https://patents.google.com/patent/US6096215A/en
Excess nitrogen in the discharged wastewater may lead to excessive plant growth and algae blooms which cause bad taste, bad odor, dissolved oxygen (DO) ...

Policy CW-8 - 20201030 - 10 Year WQ Roadmap

https://docs.google.com/document/d/1R8TWtKVmpoo3rpeSKYtTyZlYx-Jis3PXzLqan0OPFz8/edit
Too much nitrogen and phosphorus in the water causes algae to grow faster than ecosystems can handle. Large growths of algae are called algal blooms. Some algal ...

US3586625A - Treatment of aqueous streams for removal of ...

https://patents.google.com/patent/US3586625A/en
To avoid excessive plant growth which might lead to ... algae blooms by controlling the discharge of ammonia, nitrates and soluble phosphates.

US10065876B2 - Algal system for improving water quality - Google ...

https://patents.google.com/patent/US10065876B2/en
... algae, and may contribute to out-of-control algae blooms in freshwater lakes. And, excess nitrogen and phosphorous can cause eutrophication, which is the ...

CN103214074B - Aquaculture water purification agent and ...

https://patents.google.com/patent/CN103214074B/en
For ammonia nitrogen, nitrite, nitre nitrogen adopts the easily ... algae bloom and its application method. CN101857300A * 2010-07-16 2010-10-13 ...

Water Pollution Powerpoint - Google Slides

https://docs.google.com/presentation/d/1WTfFi2geXRZGpDShKwpatMliO-4zG4gQMCCP_jm5kEw/htmlpresent
They can cause the growth of aquatic weeds that block waterways as well as algal blooms ... These are caused by excessive nutrient pollution (usually nitrates and ...

US6881338B2 - Integrated tidal wastewater treatment system and ...

https://patents.google.com/patent/US6881338B2/en
High influent ammonia and nitrate concentrations result in aquatic plants (in most species) with short roots. Plants with longer roots in turn have a positive ...

Environmental Science

https://sites.google.com/archer.org/archer-stem-symposium-2023/home-page/environmental-science
... ammonia, nitrite, and nitrate concentrations, was collected, along with ... Excess fertilizer causes eutrophication, which leads to increased algae growth.

WO2017162847A1 - Remediation and/or restoration of an anoxic ...

https://patents.google.com/patent/WO2017162847A1/en
Normally, nitrate is produced during the nitrification of ammonia (NH 3) ... nitrite and ammonia and high levels of nitrate in the hypolimnion. When the ...

CN101348772B - Strain of Comamonas aquaticus and its ...

https://patents.google.com/patent/CN101348772B/en
... algae in water bodies and the outbreak of algae blooms ... high-efficiency degradation ability to ammonia nitrogen and nitrite nitrogen was isolated.

WO2005028373A2 - Single vessel multi-zone wastewater bio ...

https://patents.google.com/patent/WO2005028373A2/zh
It will be apparent that the nitrogen removal process requires first an aerobic step in which oxidation of ammonia to nitrate occurs (nitrification), followed ...

EP2500722A1 - Method of determining a concentration of nitrate ...

https://patents.google.com/patent/EP2500722A1/en
While nitrate exposure is most easily caused by drinking water, it can also be caused by eating vegetables with high levels of nitrate. ... algal blooms is ...

US8642507B1 - Fertilizer formulation for reduction of nutrient and ...

https://patents.google.com/patent/US8642507B1/en
The term “eutrophication” as used herein refers to water pollution caused by the presence of excessive plant nutrients in a water source e.g., lake, pond, and/ ...

CN110002568A - A kind of water-soluble Ca and Mg regulator and ...

https://patents.google.com/patent/CN110002568A/en
... ammonia nitrogen, content of nitrite and pH value, basicity, hardness. ... CN105145676A 2015-12-16 Algae bloom inhibitor. CN102936569A 2013-02-20 ...

US9052292B2 - Method of determining a concentration of nitrate ...

https://patents.google.com/patent/US9052292B2/en
While nitrate exposure is most easily caused by drinking water, it can also be caused by eating vegetables with high levels of nitrate. ... algal blooms is ...