Biofilm Issues in Dairy Waste Effluents

2015 ◽  
pp. 189-202
Author(s):  
Michael Dixon ◽  
Steve Flint ◽  
Koon Hoong Teh ◽  
Kieran Mellow
Keyword(s):  
Dairy Waste ◽  
Waste Effluents

Removal of nutrients from Organic Liquid Agricultural Waste using filamentous algae.

2020 ◽  
Author(s):  
Gonzalo Flores-Morales ◽  
Mónica Díaz ◽  
Patricia Arancibia-Avila ◽  
Michelle Muñoz-Carrasco ◽  
Pamela Jara-Zapata ◽  
...  
Keyword(s):  
Organic Waste ◽  
Low Cost ◽  
Organic Liquid ◽  
Agricultural Waste ◽  
Filamentous Algae ◽  
Tertiary Treatment ◽  
Nutrient Reduction ◽  
Algae Removal ◽  
Algae Growth ◽  
Waste Effluents

Abstract A feasibility analysis of tertiary treatment for Organic Liquid Agricultural Waste is presented using filamentous algae belonging to the genus Cladophora sp. as an alternative to chemical tertiary treatment. The main advantages of tertiary treatments that use biological systems are the low cost investment and the minimal dependence on environmental variables. In this work we demonstrate that filamentous algae reduces the nutrient load of nitrate (circa 75%) and phosphate (circa 86%) from the organic waste effluents coming from dairy farms after nine days of culture, with the added advantage being that after the treatment period, algae removal can be achieved by simple procedures. Currently, the organic wastewater is discarded into fields and local streams. However, the algae can acquire value as a by-product since it has various uses as compost, cellulose, and biogas. A disadvantage of this system is that clean water must be used to achieve enough water transparency to allow algae growth. Even so, the nutrient reduction system of the organic effluents proposed is friendly to the ecosystem, compared to tertiary treatments that use chemicals to precipitate and collect nutrients such as nitrates and phosphates.

Decolorization of Textile Waste Effluents by Ozonation

1991 ◽  
Vol 21 (2) ◽  
pp. 143-156 ◽  
Author(s):  
Sheng H. Lin ◽  
Chi M. Lin
Keyword(s):  
Textile Waste ◽  
Waste Effluents

HOSPITAL ENVIRONMENTAL AND RESIDUES MANAGEMENT: BRAZILIAN EXPERIENCES

2012 ◽  
Vol 14 (03) ◽  
pp. 1250018 ◽  
Author(s):  
ERIC DORION ◽  
ELIANA SEVERO ◽  
PELAYO OLEA ◽  
CRISTINE NODARI ◽  
JULIO FERRO DE GUIMARAES
Keyword(s):  
Public Health ◽  
Environmental Management ◽  
Waste Management ◽  
Management Practices ◽  
Hospital Waste ◽  
Environmental Management Practices ◽  
Hospital Effluents ◽  
Waste Segregation ◽  
Waste Effluents ◽  
Responsible Attitude

Since Brazilian healthcare institutions have the duty to care about public health service, they also have the social and financial responsibilities to bring environmentally friendly practices and strategies, including principally a responsible attitude towards hospital waste management. Negligent waste management contributes significantly to polluting the environment. Today, a specific regional context in the southern State of Rio Grande do Sul, Brazil, shows an ambivalent situation in terms of hospital waste management. This study aims to analyze the environmental management practices and innovation strategies of the hospitals of the Serra Gaúcha region, as well as conducting a comparison between the environmental management practices versus the current Brazilian laws. Based on data analysis, it was found that all hospitals employ the practice of waste segregation, preserving public health and environmental quality. However, in respect to hospital waste effluents, 75% of the hospitals of the Serra Gaúcha region do not treat their hospital effluents, not complying with the current Brazilian legislation.

scholarly journals Nitrification exhibits Haldane kinetics in an agricultural soil treated with ammonium sulfate or dairy-waste compost

2010 ◽  
Vol 74 (2) ◽  
pp. 316-322 ◽  
Author(s):  
Teresa E. Koper ◽  
John M. Stark ◽  
Mussie Y. Habteselassie ◽  
Jeanette M. Norton
Keyword(s):  
Ammonium Sulfate ◽  
Agricultural Soil ◽  
Dairy Waste

Stability of protein water concentrates from potato starch factory waste effluents

1975 ◽  
Vol 26 (5) ◽  
pp. 617-623 ◽  
Author(s):  
Edward S. Dellamonica ◽  
Charles N. Huhtanen ◽  
Eugene O. Strolle
Keyword(s):  
Potato Starch ◽  
Waste Effluents

scholarly journals Plant uptake of nitrogen adsorbed to biochars made from dairy manure

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Leilah Krounbi ◽  
Akio Enders ◽  
John Gaunt ◽  
Margaret Ball ◽  
Johannes Lehmann
Keyword(s):  
New York ◽  
Crop Production ◽  
Liquid Fraction ◽  
N Uptake ◽  
Dry Weight ◽  
Dairy Manure ◽  
Production Costs ◽  
Available N ◽  
Dairy Waste ◽  
Pre Treatment

AbstractThe conversion of dairy waste with high moisture contents to dry fertilizers may reduce environmental degradation while lowering crop production costs. We converted the solid portion of screw-pressed dairy manure into a sorbent for volatile ammonia (NH3) in the liquid fraction using pyrolysis and pre-treatment with carbon dioxide (CO2). The extractable N in manure biochar exposed to NH3 following CO2 pre-treatment reached 3.36 g N kg−1, 1260-fold greater extractable N than in untreated manure biochar. Ammonia exposure was 142-times more effective in increasing extractable N than immersing manure biochar in the liquid fraction containing dissolved ammonium. Radish and tomato grown in horticultural media with manure biochar treated with CO2 + NH3 promoted up to 35% greater plant growth (dry weight) and 36–83% greater N uptake compared to manure biochar alone. Uptake of N was similar between plants grown with wood biochar exposed to CO2 + NH3, compared to N-equivalent treatments. The available N in dairy waste in New York (NY) state, if pyrolyzed and treated with NH3 + CO2, is equivalent to 11,732–42,232 Mg N year−1, valued at 6–21.5 million USD year−1. Separated dairy manure treated with CO2 + NH3 can offset 23–82% of N fertilizer needs of NY State, while stabilizing both the solid and liquid fraction of manure for reduced environmental pollution.

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