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Tuesday, July 28, 2020 | History

2 edition of Recovery of valuable materials from silage effluent found in the catalog.

Recovery of valuable materials from silage effluent

D.W Oldfield

Recovery of valuable materials from silage effluent

by D.W Oldfield

  • 112 Want to read
  • 7 Currently reading

Published by UMIST in Manchester .
Written in English


Edition Notes

StatementD.W. Oldfield ; supervised by C. Webb.
ContributionsWebb, C., Chemical Engineering.
ID Numbers
Open LibraryOL21428062M

effluent of some dairy manure digesters. This material can then be used for cattle bedding or sold as a soil amendment. Most of the ruminant and hog manure solids that pass through a separator will digest in a covered lagoon, leaving no valuable recoverable by-product. • Biogas recovery. Biogas formed in the anaerobic digester bubbles to the. In recent years, the recovery of metals from spent lithium ion batteries (LIBs) has become increasingly important due to their great environmental impact and the wastage of valuable metallic resources. Among different types of spent LIBs, processing and recycling .

Heat treatment of silage effluent and rumen fluid before the addition of pUC18 DNA did, however, result in the recovery of ampicillin-resistant colonies, even after a 2-h incubation. In these experiments, the maximum number of transformants observed after 2 h with heat-inactivated silage effluent or rumen fluid, was ×10 4 and ×10 4 cfu. Silage effluent is a potent wastewater that can be produced when ensiling crops that have a high moisture content (MC). Silage effluent can cause fish-kills and eutrophication due to its high biochemical oxygen demand (BOD) and nutrient content, respectively. It has a high acidity (pH≈) making it corrosive to steel and damaging to.

  This book compiles research findings directly related to sustainable and economic waste management and resource recovery. Mining wastes and municipal, urban, domestic, industrial and agricultural wastes and effluents—which contain persistent organic contaminants, nanoparticle organic chemicals, nutrients, energy, organic materials, heavy metal, rare earth elements, iron, steel, bauxite, . Keywords. Silage, Bunker Silo, Silage Piles, Density, Porosity, Dry Matter Loss, Feed Loss, Aerobic Decomposition. Introduction Forage is a valuable commodity stored on dairy farms. When stored in bunker and pile silos, dry matter (DM) losses can be in the range of % when good management is used in packing, covering and.


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Recovery of valuable materials from silage effluent by D.W Oldfield Download PDF EPUB FB2

Silage effluent should not be spread within m of field boundaries, 10m of smaller watercourses, 20m of lakes and main channels, 50m of domestic wells, and up to m in the case of public water supply sources. Options for disposal of silage effluent. Use of effluent as a fertiliser.

Silage effluent has a significant value as a fertiliser. However, the simplest expedient is to wilt silage grass (or other materials to be ensiled) in the field to 25–30 % dry matter in which case the production of effluent is minimised.

In the case of forage maize, harvesting of the standing crop is delayed until the dry matter reaches about 30%. Effluent release during silage making represents a loss of silage dry matter (DM), and a reduction in the value of the silage as feed.

These concerns motivated research aimed at reducing effluent production and release (Jones and Jones,Cited by:   Over the course of an experiment consisting of three, day cycles of immersion in the silage effluent, the sample performance was evaluated by testing permeability, porosity, water absorption, capillary suction, compressive strength, and mass loss.

According to the results obtained, the OPC samples suffered the highest rise in permeability Cited by: Silage effluent is a potent wastewater that can be produced when ensiling crops that have a high moisture content (MC). Silage effluent can cause fish-kills and eutrophication due to its high.

This book basically deals with utilization of food industry wastes, ultra filtration in the recovery of food waste, recovery of fruit and vegetable wastes, recovery of protein, the screening of vegetable wastes, fat extraction, treatment of fatty effluents, recovery and utilization of protein, conversion of bone to edible products, utilization.

An investigation was undertaken to determine if addition of phosphate rock (PR) to silage effluent could be used as a mechanism to increase available P. Addition of PR to effluent reduced recovery of available P, regardless of silage effluent batch, amount of.

Recycling metals from wastes is an important subject not only from the point of the recovery aspect of valuable materials but also from the point of waste management.

For example, it would be very beneficial if toxic metals can be easily removed from waste so that the waste can be used for secondary purposes, e.g. in construction. Electronic waste, or e-waste, is an emerging problem with developed nations as with developing nations.

In the absence of proper collection and disposal systems, awareness, and proper regulations, the problem is rather more acute in developing nations. These wastes are environmentally hazardous on one hand and valuable on the other.

They contain substantial amount of metal value. The book covers complete details of textile processing with the standard parameters of effluents treatment which is the burning problem for the textile processors. Needless to say that this book will be of immense use to textile processors, consultants and chemists engaged in water and waste water treatment, research institutions etc.

Contents 1. Silage effluent is very acidic and all effluent conducting channels and ducts must be coated with acid-resisting materials. Silage effluent does contain some plant nutrients average values may be in the region of Kg per litres N, Kg per litres P 2 O 5 and Kg per litres of K 2 O.

It can be applied to land by a tanker. Silage effluent represents a loss of readily available nutrients. Typically it has a DM of 6%, an ME of MJ/kgDM and a CP of about 19% DM.

Silage effluent is the most corrosive effluent produced on farm. It is also the most polluting being times worse than raw sewage.

Simply stated this is the amount of oxygen needed to break down the product. Silage effluent often has a BOD aro mg of oxygen per liter of effluent, while raw domestic sewage runs about mg/L.

The actual numbers are not important here, the point is that silage effluent. Technology Book on Waste Management in Food Processing Industry (Recovery of Food Waste, Recovery of Fruit and Vegetable Wastes, Recovery of Protein, Fat Extraction, Silage Production, Uses of Enzymes, Treatment of Diary Wastes, Treatment of Wheat Starch Effluent, Production of Earthworm Proteins, Utilization of Waste in Animal Feeds) See more.

Critical and Rare Earth Elements: Recovery from Secondary Resources is aimed to compile the distribution of rare earth elements in various resources with their processing from secondary resources.

There was little effluent when the dry matter content of the silage was above 27%, but below 20% dry matter effluent loss ranged from 10 - 20% of the dry matter (see Table 4). The study showed that adding 10% barley, beet pulp, or alfalfa cubes successfully reduced effluent, but alfalfa cubes were the most effective of the three additives at.

Recovery of some valuable components from industrial waste. Separation Science and Technology: Vol. 52, No. 3, pp. with Effluent Treatment (Sizing, Combined Effluent, Primary Treatment, Introduction A textile or cloth is a flexible material consisting of a network of natural or artificial fibres (yarn or thread).

Yarn is produced by spinning raw fibres of wool, flax, cotton, hemp, or other material to Recovery of Valuable Materials from Woollen.

more air in the silage mass, which subsequently increases the probability of substantial respiratory heating and dry matter loss. Most forages need only to be wilted to 60 to 70 although effluent production in certain silo types the silage crop exceeds 65 percent moisture.

Most and ensiled safely within 24 hours of mowing when. Silage effluent is a high nutrient liquid waste product from low DM silage. Typically it has a pH of between – 5, making it highly corrosive to both metal and concrete and capable of damaging the silage storage structure.

In addition, it is highly poisonous to watercourses with 1l of silage effluent containing sufficient organics to. Effluent from corn silage harvested at excessive moisture content represents a loss of valuable nutrients and poses an environmental risk because the effluent is very rich in soluble nutrients.

In our study there was a curvilinear relationship between corn silage moisture content and amount of silage effluent. Proper facilities should be provided for effluent, which can vary from 10 to 50 gallons per tonne of grass, depending on the dry matter of the material being ensiled.

Silage harvesting is very. This valuable work is the complete proceedings of the Metals Speciation, Separation and Recovery International Symposium sponsored by the Industrial Waste Elimination Research Center at the Illinois Institute of Technology, Chicago, Illinois, and the Water Research Institute of the Italian National Research Council, Rome, Italy, held in Rome.