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Pagina generata il 3/5/2012
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Sewage disposal - Rota Guido |
Sewage disposal, equipment for zootechnics, facilities for zootechnics, Sewage disposal |
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| Rota Guido - Facilities and equipment for zootechnics About us Services Products Exhibitions Agents News Newsletter Links Contact us info@rotaguido.it Products _________________________________________________________________ Home page > Products > Sewage disposal plants > Solutions for the sewage disposal LIFTING AND PUMPING STATION The whole equipment required for the lifting and the conveyance of the liquid manure to the storage and the ensuing disposal stages. The distinguishing component is the pump with its specifications of delivery, discharge head, power and its availability of accessories for the various special operations, that, if correctly dimensioned and installed in the plant, makes the plant crucially reliable since it is specially conceived to dispose of a difficult product because of the variable level of solids and the high corrosiveness on metals. Cardan joint or electrically powered pumps are available. Tank mixer. Mixer for underground tanks with arm from 4 to 8 m long and mixer for aboveground tanks up to 6 m high. Slalom mixer. It allows the mixing of all undersplit pits from a single place. External or submerged electrically powered grinding - stirring devices. They are intended for fixed plants that can be automatically operated, with programmable control boards. The whole equipment required for the lifting and the conveyance of the liquid manure to the storage and the ensuing disposal stages. The distinguishing component is the pump with its specifications of delivery, discharge head, power and its availability of accessories for the various special operations, that, if correctly dimensioned and installed in the plant, makes the plant crucially reliable since it is specially conceived to dispose of a difficult product because of the variable level of solids and the high corrosiveness on metals. Cardan joint or electrically powered pumps are available. Vertical grinding pumps with cardan joint or external electric motor on the sewage's surface. Tearing pumps for strawy and thick sewage with external and submerged motor. High-delivery flushing pumps with flow intended for installation in the washing circuit of the different passages or waiting areas. Pumps for sewaging. They are suited to convey the sewage further away, for underground fixed plants and also for self-propelled irrigators. CONVEYANCE LINES AND ACCESSORIES They consist of the PVC, hot-galvanized steel and stainless steel fittings and pipes which are crucial for the spreading and the conveyance of the sewage from the pre-tank to any ensuing treatments and to the final storage. Ladders, balconies, gangways and trestleworks allow to reach the various equipment for the treatment and the visual check of the state of storage. Hot-galvanized steel or stainless steel models are available; they can be mass-produced or upon specific design so as to be applied onto any kind of reservoir. The floodgates are essential to intercept the sewage for the collection from the reservoir. The following models are available: wall-mounted, safety and with float valve. The float valve is particularly useful so as to make the collection easier in case of external drainage well. SOLID - LIQUID SEPARATION The solid manure separation is a widespread treatment as it assures some interesting environmental advantages in the sewage disposal. The solid-liquid separation consists in removing the solid particles from the sewage, thus obtaining two contents: a substantially solid one that can be shovelled and piled up on the floor and a totally liquid one. The achievable managing and environmental advantages are significant as the liquid content is characterized by: 1. easy-to-run (less clogging problems or obstructions during the operations of removal, pumping, recovery in the piling reservoirs and sewaging spreading); 2. good fluidization that allows to use low-power equipment and to get a better mixing, in particular in large-sized reservoirs; 3. less content of nitrogen and, above all, phosphorus (bigger volumes that can be spread on cultivations); 4. significant reduction of foul smells given off during the storage and the spreading; 5. smaller volume (smaller capacity of the storing reservoirs); 6. reduction of phenomenon of the leaf stain during the covering spreading; 7. reduction of the NH3 emissions in the atmosphere thanks to the faster penetration in the surface layer of the land; 8. the resulting solid content can be used in agronomy as amender or it can be subjected, together with other products, to a composting process. Sewage separator "ROTA 2000", wholly manufactured of stainless steel, with the following specifications: Required power 1,5 Kw for the sorting drum and the pressing cylinders. Dimensions: Height: 1625 mm Width: 2040 mm Length: 1800 mm Sorting drum: Ø 630 mm Round perforation: 1,5 - 2 - 2,5 mm Roller chain operation. Pressing cylinders with special fibre-reinforced rubber. Adjustment by weight with pressure spring. Safety device for foreign bodies with overload switches. The solids are removed by the sorting drum, made of stainless steel perforated plate, that, suitably reinforced, revolves thanks to three internal cylinder which are rubber coated with Teflon side stops. The liquid content seeps in the roller through the drum holes and it collects in the lower hopper from which it reaches the storage; the solid content keeps on the external surface of the drum. Then two special pressing rollers with adjustable force press it so as to further reduce its humidity and to assure a "dry" product with a high percentage of dry matter. A special steel blade remove from the drum the thickened solid content that is carried on a conveyor, on a wagon or directly on the storage platform below. Worm-wheel separator provided with: special steel auger; stainless steel cylinder for sieve and division; exhaust cone with suspended loading and value scale; fastening frame for the installation on ground or on a movable platform; T-inlet; discharge mouth; gearmotor with star-delta switch 4 KW, 400 V / 690 V 50 Hz; distance between dividing heads 0,5/0,75/1,0 mm grey cast-iron inlet body. The ROTA separators have a high hourly production, top working reliability, exceptional performance of separation of the solid matter and they don't require any special maintenance. The possibility of installing the separator on a truck allows to use it in many farmings, by making the advantages resulting from the separation process available for the small-sized farms too. DEODORIZING AND OXYGENATION The emission of bad smells is mainly the result of the fast processes of fermentation and degradation of the most putrescent content of the sewage organic matter by means of several microorganisms. To avoid the formation of the bad smells it is therefore necessary to carry out treatments capable of speeding up the degradation of that part of the organic matter so as to get a product where only the so-called "slow" processes are active. The treated product is almost odourless as the fermentation activity is minimized and consequently any smelly compounds are given off. The sewage stabilization can be obtained either by aerobic or anaerobic treatments. The aerobic treatment with Mixer - aerator of submergible and self-aspirating type, allows the even oxygenation at the various depths - a particularly interesting feature for sewage subject to a greater sedimentation (pigs' dung) - and a little formation of aerosol during the functioning. The forced oxygenation for the nitre-denitrification process allows to get the reduction of the nitrogen content in the sewage and it is therefore very interesting for all vulnerable areas. COMPOSTING The composting is a controlled organic process of mineralization and partial humidification of the organic matter that takes place in presence of oxygen. It is different from the natural process of decomposition of the organic matter, which is represented by various natural examples (wood litter, manure), because of its greater speed and the considerable heat production. The final product (compost) has the typical physical-chemical characteristics of an amender, that can change according to the process duration (maturity degree). This solution is of great practical interest especially in those areas where the excessive load of dung per surface unit leads to the search of solutions capable of assuring a more `easy-to-manage' product, both inside and outside the farm, i.e. that can be suitably conveyable far away. Glasshouse with hot-galvanized steel framework and translucent plastic coverings provided with composting plant with reactor treatment and horizontal pit equipped with automated mixer, sliding on tracks situated on the top of the side walls of the reactor. Working windrow-grinding wagon for the composting treatment on very wide open areas. Back to: Home page - Products - Sewage disposal plants |
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Tel. 0372/93119 - Fax 0372/93424 - info@rotaguido.it P. IVA: 00921220331 |