Results 241 to 250 of about 1,476,093 (293)

Nutrient removal from farm effluents

Bioresource Technology, 2004
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),
N S, Bolan, L, Wong, D C, Adriano
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Effects of forest harvesting nutrient removals on soil nutrient reserves

Oecologia, 1986
Intensive harvesting of native eucalypt forests is carried out in the Eden area in the south east coastal region of New South Wales, Australia. Soil nutrient capital and nutrient removals in forest harvesting were estimated together with potential impacts of these removals on the nutrient capital balance.
John, Turner, Marcia J, Lambert
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Nutrient retention dynamics of the Everglades Nutrient Removal Project

Wetlands, 1999
The Everglades Nutrient Removal (ENR) Project was constructed to reduce nutrient concentrations in stormwater runoff water from the Everglades Agricultural Area. Although nutrient concentrations of influent water ranged from 66 to 201 μg TP L and 140 to 541 μg TN L−1 and varied substantially over time, the outlet concentrations remained low, 9 to 39 μg
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Nutrient Removal by Effluent Spraying

Journal of the Sanitary Engineering Division, 1965
The South Tahoe Public Utility District, which provides sewage collection and disposal for the south shore area of Lake Tahoe, Calif. and Nev., operates an activated sludge plant whose effluent is first ponded and then sprayed on a forested hillside. The area available for spraying is limited and is therefore saturated, and the water that escapes from ...
Herbert B. Foster, Paul C. Ward, Arnold A. Prucha   +2 more
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Effect of Variety on Nutrient Intake and Nutrient Removal by Cereals

Агрохимия
The results of field experiments are presented, in which the influence of varietal characteristics of grain crops of different breeding periods on the effectiveness of using mineral fertilizers for them on various soils was studied. Special attention was paid to the specific removal of nutrients, which means the consumption of nitrogen, phosphorus and ...
S. A. Shafran, S. B. Vinogradova
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Mechanisms of Biological Nutrients Removal

To appropriate design the biological wastewater treatment processes with emphasizing on removing nitrogen and phosphorus (NP) for different types of wastewater, fundamental concepts on various mechanisms of NP removal is of vital importance. In this line, this chapter provides a detailed discussion on the biological removal mechanisms of phosphorus and
Rahimi, Zahra, Zinatizadeh, Ali Akbar, Najafpour, Ghasem D., Batstone, Damien J.   +3 more
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Bulking sludge in biological nutrient removal systems

Biotechnology and Bioengineering, 2004
AbstractBulking sludge problems are commonly reported in biological nutrient removal (BNR) systems. This has led to the general belief that intrinsic BNR conditions favor the growth of undesirable and excessive filamentous bacteria. The present study shows that other factors have a major role in bulking, and not the BNR conditions.
Antönio M P, Martins, Joseph J, Heijnen, Mark C M, van Loosdrecht   +2 more
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Nutrients removal and recovery in bioelectrochemical systems: A review

Bioresource Technology, 2014
Nutrient removal and recovery has received less attention during the development of bioelectrochemical systems (BES) for energy efficient wastewater treatment, but it is a critical issue for sustainable wastewater treatment. Both nitrogen and phosphorus can be removed and/or recovered in a BES through involving biological processes such as ...
Patrick T, Kelly, Zhen, He
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Nutrient Removal for Marine Disposal

Water and Environment Journal, 1988
SYNOPSISEutrophication and severe oxygen depletion of the Danish seas have created a demand for nutrient removal from wastewater. Effluent concentrations from 2 to 0.3 mg/l P can be achieved by chemical precipitation. Nitrogen is best removed by combined nitrificationdenitrification. Effluent concentrations down to 3 to 4 mgll ‐ can be achieved.
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Effects of Moisture Removal on Nutrients

1988
Dehydrated foods and concentrated foods, both as ingredients for further processing and as consumer products, are major industrial products. Milk, eggs, fruits, fruit juices, vegetables, meat, and other items of nutritional importance can be found in the dehydrated form.
Peter M. Bluestein, Theodore P. Labuza
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