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Tuesday, August 11, 2020 | History

2 edition of Removal of nitrate by an algal system found in the catalog.

Removal of nitrate by an algal system

California. Dept. of Water Resources.

Removal of nitrate by an algal system

phase II.

by California. Dept. of Water Resources.

  • 91 Want to read
  • 40 Currently reading

Published by For sale by the Supt. of Docs., U.S. Govt. Print. Off., Washington in Sacramento .
Written in English

    Subjects:
  • Water -- Purification -- Biological treatment.,
  • Water -- Purification -- Nitrogen removal.,
  • Drainage -- California -- San Joaquin Valley.

  • Edition Notes

    SeriesWater pollution control research series, Bio-engineering aspects of agricultural drainage, San Joaquin Valley, California, Bulletin (California. Dept. of Water Resources) -- 174-16
    ContributionsUnited States. Environmental Protection Agency. Water Quality Office., United States. Bureau of Reclamation.
    The Physical Object
    Paginationxii, 132 p. :
    Number of Pages132
    ID Numbers
    Open LibraryOL22954277M

    This nitrogen, usually in the form of nitrate, can cause algal blooms. Microbes that decompose these algae can ultimately remove oxygen from water bodies, causing dead zones and fish kills. In a new study, researchers have identified nitrate removal hotspots in landscapes around agricultural streams. Autotrophic Biological Denitrification with Elemental Sulfur or Hydrogen for Complete Removal of Nitrate-Nitrogen from a Septic System Wastewater A Final Report Submitted to The NOAA/UNH Cooperative Institute for Coastal and Estuarine Environmental Technology (CICEET) Submitted by .

    Mar 21,  · HIGH levels of nitrate in ground water can pose a serious health risk. Reduction of nitrate to nitrite in the gut may cause methemoglobinaemia1both in newborn infants and in adults deficient in Cited by: Nitrate removal capacity of constructed wetlands by Richard Gregory Phipps A dissertation submitted to the graduate faculty partial fulfillment of die requirements for the degree of DOCTOR OF PHILOSOPHY Major: Water Resources Major Professor: William G. Crumpton Iowa State Universitj-Ames. Iowa

    Nutrient pollution builds up in our nation's lakes, ponds, and streams. EPA's National Lakes Assessment found that almost 20 percent of the 50, lakes surveyed had been impacted by nitrogen and phosphorus pollution. Measuring Nitrate Concentrations in Water Bodies for Algae Prediction and Pollution Detection a solar-powered system for monitoring and controlling algal blooms. The water quality sensors measure essential algae indicators (Chlorophyll-a, Phycocyanin, and turbidity) and water quality parameters (Dissolved Oxygen (DO), Redox, pH, and.


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Removal of nitrate by an algal system by California. Dept. of Water Resources. Download PDF EPUB FB2

Get this from a library. Removal of nitrate by an algal system: phase II. [James F Arthur; California. Department of Water Resources.; United States.

Environmental Protection Agency. Office of Research and Monitoring.; United States. Bureau of Reclamation.] -- Major findings are presented from a one-year operational investigation on the use of algae to remove nitrogen from subsurface.

Removal of nitrate by an algal system. Related Titles. Series: Bio-engineering aspects of agricultural drainage, San Joaquin Valley, California Series: Bulletin (California. Dept. of Water Resources) ; Book ***** Print on Demand *****.Excerpt from Removal of Nitrate by an Algal System: April The Bio-Engineering Aspects of Agricultural Drainage reports describe the results of a unique interagency study of the occurrence of nitrogen and nitrogen removal treatment of subsurface agricultural.

Removal of nitrate by an algal system: bio-engineering aspects of agricultural drainage San Joaquin Valley, California. BIO-ENGINEERING ASPECTS OF AGRICULTURAL DRAINAGE SAN JOAQUIN VALLEY, CALIFORNIA REMOVAL OF NITRATE BY AN ALGAL SYSTEM PHASE II Prepared by California Department of Water Resources William R.

Gianelli, Director The agricultural drainage study was conducted under the direction of: Robert J. Pafford, Jr., Regional Director, Region 2 UNITED STATES. Nitrate and Nitr ite Removal from Wastewater Using Al gae Mahboobeh Taziki 1, Hossein Ahmadzadeh *,1, Marcia A.

Murry 2 and Stephen R. Lyon 3 1 Department of Che mistry, Ferdowsi University o f. In continuous cultures, phosphorus removal efficiencies have been reported to be between 70 and 95% in summer conditions and 25% in winter conditions.

Su et al. observed phosphate removal efficacies ranging from 56 to 73% in batch cultures (8 days of incubation) with a low nitrogen/phosphorus ratio (N/P = ). This low level of phosphate Cited by: In an earlier study, Eroglu et al. [] developed a hybrid system by immobilizing the algal cells on chitosan nanofiber mats for wastewater nitrate removal.

It was reported that immobilization of. trails and experiments the results provide that in batch system the removal of nitrate from wastewater under continuous light of about Lux was more remarkable than in continuous system.

The results show the removal efficiencies of some medium in the absence of nitrate, the rate of algal growth. Removal of inorganic nitrogen sources by cells of the aerial microalga Trentepohlia aurea grown on the surface of substrate, such as filter paper, has been investigated in a batch system.

When the alga grew on the paper dampened with medium, it actively ingested inorganic nitrogenous compounds in the medium. Immobilized cells on the filter papers were called ‘algal biofilm’ in this savilerowandco.com by: Aug 09,  · NaNO 3 solution ( mg/l) was used in batch adsorption experiments for nitrate removal.

First kinetic studies were carried out and it was determined that slag was not effective for nitrate removal, then contact time, pH and adsorbent dosage effects on nitrate removal by adsorption were investigated using other adsorbents except savilerowandco.com by: Algal bloom commonly refers to rapid growth of microscopic, unicellular algae, not macroscopic algae.

An example of a macroscopic algal bloom is a kelp forest. Algal blooms are the result of a nutrient, like nitrogen or phosphorus from fertilizer runoff, entering the. Journal of Biochemical and Microbiological Technology and Engineering VOL.

11, NO. PAGES () The Removal of Nitrogen and Phosphorus from Sewage Effluents through the Use of Algal Culture * t V. WITT and J.A. BORCHARDT, Department of. Monthly Maximum Discharge Limits (MMDL) have been established for selenium in irrigation drainage by the State of California and the U.S. Environmental Protection Agency following observations of avian teratogenesis at the Kesterson Reservoir in the San Joaquin Valley of California.

As a result of. trigger algal growth, phosphorus removal to lowest level would become increasingly important. Chemical and biological means are adopted to remove them.

While phosphorus could be removed chemically, nitrogen removal is mostly carried out by biological means. Biological phosphorus removal process is popular over chemical. Nitrogen Removal from Wastewater in Microalgal-Bacterial Treatment Ponds Otoyo Kurosu Abstract Much of agricultural and domestic wastewater contains high concentrations of nitrogen, which can affect public health and have harmful ecological impacts.

Algae (/ ˈ æ l dʒ i, ˈ æ l ɡ i /; singular alga / ˈ æ l ɡ ə /) is an informal term for a large, diverse group of photosynthetic eukaryotic organisms that are not necessarily closely related, and is thus savilerowandco.comed organisms range from unicellular microalgae, such as Chlorella and the diatoms, to multicellular forms, such as the giant kelp, a large brown alga which may grow.

Aug 22,  · In addition to light, algae are also dependent on the availability of nutrients such as nitrate, phosphate or silicic acid for growth.

A limited amount of nutrients is available naturally, which generally keeps the growth of algal blooms from getting too large. However, effects of human civilization are trickling their way into the oceans. The run-off water from agriculture field with high concentration of nitrates and phosphates contaminate the water bodies such as rivers and lakes thus affecting the aquatic system and creatures.

Algal growth and degradation occurs at faster rate and the microbes utilize the dissolved oxygen present in savilerowandco.com: P. Senthil Kumar, P. Yaashikaa, S. Ramalingam. May 03,  · Large scale study in South Africa, reported by Bosman and Hendricks () concerning the removal of industrial nitrogenous wastes with high-rate algal ponds concluded that a multi-stage algal system is required for exerting the full removal potential of nitrogen by algal biomass incorporation followed by algal savilerowandco.com by:.

We saw a positive effect between the amount of nitrates added and algae growth. Algae growth was maximum at the highest amount of nitrates added. Our results showed that when nitrate was added, there was an increase of algae growth compared to when no nitrate was added.

Thus, supporting that the nutrient nitrate does play a role in algae growth.Our previous research suggests Chlorella sp. be highly efficient at absorbing and volatilizing Se. In developing an algal treatment system for Se removal, this study further evaluated the performance under the conditions to be encountered in the field using Chlorella pyrenoidosa and Chlorella savilerowandco.com by: 4.Development of a Constructed Wetland Water Treatment System for Selenium Removal Lin, Zhi-Qing, & Terry, Norman.

Development of a Constructed Wetland Water Treatment System for Selenium Removal: Incorporation of an Algal the ultimate goal is to install a treatment system that will remove uranium and nitrate from groundwater before it.