Chemical dosage control for phosphorus removal
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Chemical dosage control for phosphorus removal by Pollutech Pollution Advisory Services Ltd.

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Published by Environment Canada : obtained from Training and Technology Transfer Division (Water), Environmental Protection Service, Environment Canada in Ottawa .
Written in English


  • Sewage -- Purification -- Phosphate removal.

Book details:

Edition Notes

Other titlesCanada-Ontario agreement on Great Lakes water quality.
Statementby Pollutech Pollution Advisory Services Ltd.
SeriesResearch report - Research Program for the Abatement of Municipal Pollution under Provisions of the Canada-Ontario Agreement on Great Lakes Water Quality ; no. 4, Research report (Program for the Abatement of Municipal Pollution (Canada)) ;, no. 4.
LC ClassificationsTD758.5.P56 P64 1973
The Physical Object
Paginationvi, 80 p. :
Number of Pages80
ID Numbers
Open LibraryOL4482073M
LC Control Number79310554

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The chemical dosage for P removal is the same as the dosage needed for BOD and SS removal, which uses the main part of these chemicals. As mentioned above lime consumption is dependent on the alkalinity of the wastewater: only 10% of the lime fed is used in the phosphorous removal reaction.   An illustration of an open book. Books. An illustration of two cells of a film strip. Video An illustration of an audio speaker. Chemical dosage control for phosphorus removal / Item Preview remove-circle Chemical dosage control for phosphorus removal / Publication date Publisher Ontario Ministry of the Environment.   Stringent phosphorus discharge standards (i.e. – g P.m −3) in the Baltic area will compel wastewater treatment practice to augment enhanced biological phosphorus removal (EBPR) with chemical precipitation using metal study examines control of iron chemical dosing for phosphorus removal under dynamic loading conditions to optimize operational aspects of a Cited by: Phosphorous Treatment and Removal Technologies wq-wwtp • June page 2 Chemical Dose The required chemical dose is related to the liquid phosphorus concentration. For target concentrations above 2 mg/L (appropriate for chemical addition to a primary clarifier), a dose of mole of aluminum or iron per mole of phosphorus is sufficient.

  To enhance phosphorus removal and make the effluent meet the strict discharge level of total phosphorus (TP, mg/L), flocculant dosing is frequently applied. In this study, the performance of aluminum sulfate dosing in a University of Cape Town Membrane Bioreactor (UCT-MBR) was investigated, in terms of the nutrients removal performance, sludge characteristics and membrane . phosphorus from the wastewater in the aerobic zone of the biological phosphorus removal process. Sludge age is the length of time a particle of activated sludge stays in the treatment plant measured in days. In a biological phosphorus removal plant, sludge age is the amount (lbs). Chemical Dose Determination The most important component of a control strategy for chemical phosphorous removal is the calculation of coagulant dosage. Dosage rates for aluminum salts or for iron salts are based on the molar ratio of available metal ion to phosphorous. Theoretically to remove 1 mg/L of PO4-P you need • mg/L of Alum. Total Phosphorus (TP) removal under a variety of operating conditions is shown in Table It can be seen that the bioreactor had a distinctive ability to remove TP, depending on the functions of BA fillers such as adsorption, chemical conversion, and microbe assimilation. The phosphorus accumulated in the reactor by adsorption and chemical conversion can be used to synthesize cellular.

Chemical phosphorus (P) removal during aerobic wastewater treatment induced by iron salt addition in sewer systems for sulfide control is investigated. Aerobic batch tests with activated sludge fed with wastewater containing iron sulfide precipitates showed that iron sulfide was rapidly reoxidised i . This valuable new book offers practical guidance regarding the design and operation of systems for reducing effluent nitrogen and phosphorus. The principles of nitrogen and phosphorus removal are discussed, including sources of nitrogen and phosphorus in wastewater, removal options, nitrogen and phosphorus transformations in treatment, process selection, and treatment. The book also covers . Phosphorus Removal 19 General Treatment Efficiency 23 PART II. ALUM ADDITION 26 Dosing Schedule and Point of Addition 26 pH Control Using Lime 26 Phosphorus Removal 29 General Treatment Efficiency 33 SLUDGE PRODUCTION RATE 35 CHANGE IN PERCENT VOLATILE SUSPENDED SOLIDS (MLVSS) 40 SLUDGE SETTLEABILITY 42 EVALUATION OF WEDGE WIRE . Chemical Phosphorous Removal Alum: Al2(SO4)3*14H2O Ferric Chloride: FeCl3 Theoretically to remove 1 mg/L of PO 4-Pyou need mg/L of Alum Total Phosphorous 19 Ferric Dose Influent Effluent % Removal 10 87% 15 93% Ortho Phosphorous. Phosphorus Removal w/ Iron.