THE ACTIVATED-SLUDGE METHOD OF SEWAGE PURIFICATION: ACTIVATED-SLUDGE EXPERIMENTS AT THE SEWAGE DISPOSAL PLANT, BALTIMORE
نویسندگان
چکیده
منابع مشابه
Sewage Sludge Disposal in Switzerland
Sewage sludge was used as fertilizer in agriculture in Switzerland since the begin ning of modern waste water treatment. During the last 40 years several difficulties arose with the agricultural use. The problems with pathogenic germs could be solved with a prepasteurisation. The contamination with heavy metals was reduced during the years but remained a cause for concern. The fear of mad cow d...
متن کاملSustainability of Domestic Sewage Sludge Disposal
Activated sludge is now one of the most widely used biological processes for the treatment of wastewaters from medium to large populations. It produces high amounts of sewage sludge that can be managed and perceived in two main ways: as a waste it is discharged in landfill, as a fertilizer it is disposed in agriculture with direct application to soil or subjected to anaerobic digestion and comp...
متن کاملNitrification Efficiency and Community Structure of Municipal Activated Sewage Sludge
Nitrification is essential to biological processes designed to remove ammonia and/or total nitrogen. It removes excess nitrogenous compound in wastewater which could be very toxic to the aquatic fauna or cause serious imbalance of such aquatic ecosystem. Efficient nitrification is linked to an in-depth knowledge of the structure and dynamics of the nitrifying community structure within the wast...
متن کاملThe Intensification of Sewage Sludge Anaerobic Digestion by Partial Disintegration of Surplus Activated Sludge and Foam
Large quantities of sludge are produced in biological wastewater treatment. Sludge has a high putrescibility and therefore has to be stabilizsed in order to enable an environmentally safe utilization or disposal. The anaerobic digestion is the standard technique to stabilize the sludge. Digestion produces biogas and reduces the amount of organic matter. The amount of excess sludge production fr...
متن کاملMetagenomes and Metatranscriptomes of Activated Sludge from a Sewage Plant, with or without Aerobic Granule Enrichment
We report here the metagenomes and metatranscriptomes of activated sludge bioreactors, enriched or not enriched with aerobic granules, at an initial state and after 1 month of incubation. Data showed that the added granular biomass expressed higher levels of expression of genes involved in ammonia elimination.
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ژورنال
عنوان ژورنال: Journal of Industrial & Engineering Chemistry
سال: 1916
ISSN: 0095-9014,1943-2968
DOI: 10.1021/i500007a026