Technology Solutions: Phosphorus removal from agricultural effluents
نویسندگان
چکیده
منابع مشابه
Removal of phosphorus from livestock effluents.
For removal of phosphorus (P) from swine liquid manure before land application, we developed a treatment process that produces low P effluents and a valuable P by-product with minimal chemical addition and ammonia losses. The new wastewater process included two sequential steps: (i) biological nitrification and (ii) increasing the pH of the nitrified wastewater to precipitate P. We hypothesized...
متن کاملNutrient removal from farm effluents.
The objectives of the study were: (i) to examine the efficiency of nutrient removal during the treatment of dairy farm effluent in a two-pond system, and (ii) to produce an inexpensive but effective nutrient trap which could be recycled as a nutrient source or soil mulch. The concentration of chemical oxygen demand (COD), biological oxygen demand (BOD), nitrogen (N), phosphorus (P) and potassiu...
متن کاملRemoval of Surfactants from Effluents
Physikalisch-chemische Beliandlungsverfaliren wurden hinsichtlich ihrer Wirksamkeit bei der Eliminierung von nichtionischen und anionischen Tensiden aus Klaranlagenablaufen gepriift. Flockulierung mit Eisen(III)-chlorid ergab eine Eliminierung von 79%; eine Batchadsorption mit Hive dreier verschiedener Aktivkohlen brachte 90 % Eliminienrng bei den anionischen und mehr ais 95% Eliminierung bei d...
متن کاملColour removal from textile effluents
The environmental issues associated with residual colour in textile efnuents have posed a major challenge to environmental scientists as well as the textile colouration processors. The requirements to remove colour from textile efnuent on si te prior to discharge to sewer have been progressively tightened due to increased public complaints about coloured watercourses. Dyes are highly dispersibl...
متن کاملReactive nitrogen and phosphorus removal from aquaculture wastewater effluents using polymer hydrogels
We have developed poly(allyl amine hydrochloride) (PAA · HCl) polymer hydrogels, that efficiently remove nitrate (NO3 ), nitrite (NO2 ), and orthophosphate (PO4 ) nutrient anions from the aquaculture wastewater. The hydrogels were prepared by chemically crosslinking linear PAA · HCl chains with epichlorohydrin (EPI). The anion binding capacity of the pH sensitive polymer gels was measured in st...
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ژورنال
عنوان ژورنال: Environmental Science & Technology
سال: 2003
ISSN: 0013-936X,1520-5851
DOI: 10.1021/es032398f