The micro-organisms utilize the contaminated substances as necessary food for their production and their preservation. The aspect for this mass of micro-organisms is that of sludge, from which we have taken the name of the process. The activated sludge pilot allows the study and the comprehension of sewage treatment by activated sludge. This Activated Sludge Sewage Treatment Pilot Plant is an intermediate stage between the physical treatments or grid iron, and primary sedimentation and the final sterilization and chlorination stage, in a sewage treatment station. The conditioning process takes place in a tank where the organic load is removed by microorganism which are cultivated under aerobic conditions by blowing in air or sometimes also pure oxygen. After the pollutant elimination phase it is necessary to divide the clarified water from the sludge, operation which is carried out in the settling tank (stating separator). Its purpose is to eliminate the contaminated organic substances which are present in the sewage water after the above mentioned physical treatment. The organic load is measured in BOD (Biological Oxygen Demand) unit and it also causes a partial elimination of COD (Chemical Oxygen Demand).
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Behind the cutaway spring, the attenuator, the hydraulic cylinder for level regulation and, in the hollow piston rod, the suspension strutcontrol device are easily visible. Active suspension and attenuation system with hydrauliccylinder, helical spring and attenuator.
Functions in the vehicle:
In bends and on un-even roads as well as in braking and accelerating, rolling and pitching motionsare practically completely suppressed. The level regulation enables manual and speed-dependentautomatic lowering and raising of the level of the vehicle.
The board is divided in five sections, and in each one there are more than one filter of the same kind. The board allows the study and the functional check on active filters carried out with operational amplifiers. The board is supplied complete with a set of stackable, plug in cables of suitable lengths and colours and with a training manual.
Power supply: ± 15 Vdc, 750 mA
It is possible to study, respectively:
High pass filter VCVS of the first and second order
Low pass filter VCVS of the first and second order
Universal filter of variable state type
Multiple feedback band pass filter
Dual T band stop filters.
We also supply additional equipment which can be used in conjunction with the towing carriage for model manufacturing & measuring facilities:
Educational Wake Rake with Integrated Pressure Transducers
Educational 1.5m Offshore Support Vessel / Trawler Model
Educational Scaled Model Guiding Arms
Educational High Speed Camera System
Tank Pit mounted Offshore & floor mounted static model 6 component balance.
Set of Educational Scaled Propeller models.
These include the Genevamechanism and a ratchet mechanism. Students test each mechanism to see how itworks and note the differences in the way that each mechanism converts themotion. This kit offers additional mechanisms, supplementary tothose of the Simple Mechanisms Kit. Students, teachers or lecturers fit theparts of the kit to the Work Panel to study or demonstrate an engineeringscience topic. The two mechanisms are the same as those used in real applications,such CNC machines, hand tools, turnstiles and lifting hoists. Each has a uniqueway of converting motion, shown by the experiments. This kit includes two popular mechanisms for experiments inconversion of motion from one form to another.
Main parts:
Ratchet mechanism
Geneva mechanism
Adequate Protractor For Fixing To The Track
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Intended use:
Optically clear adhesive film to seal the samples into the wells of PCR microplate to reduce the possibility of cross-contamination between sample wells.
This allows incorrect wear patterns and excessive tooth backlash to be demonstrated. This differential has been prepared in such a way that both the crown wheel and thebevel gear are continuously adjustable in axial direction.
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The group is supplied with manuals which describe all parts of the Adjustable Section Channel unit, the installation and utilisation procedures, as well as many exercises with the relative results. The Adjustable Section Channel allows to show experimentally several fundamental fluid-dynamic aspects. Indeed, the unit allows to visualise some physical phenomena: the water current flow in an open channel, in an enclosed duct (just placing a covering to turn the channel into a duct) or in the presence of an obstacle (three different types of weirs are supplied). Besides it allows to introduce some concepts such as the Bernoullis theorem, the energy equation and the concept of channel critical depth.
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Optimum allow-steel structure and head treatment throughout ensure high strength.
The long shank of wrench allows extra leverage without compromising safety.
The expansion valves can be selected via valves. Via an evaporator with glass tubes the correct injection and evaporation of the refrigerant can be monitored. An additional electrically heated superheater at the output of the evaporator enables the investigation of the control behaviour with different refrigerant superheating. In the refrigeration circuit the expansion valves, also called primary controllers, also play an important role. The correct selection and adjustment decisively affects the capacity of the overall refrigeration system. The trainer enables the investigation of four different expansion valves: TEV (Thermostatic Expansion Valve) with internal pressure compensation, TEV with external pressure compensation, TEV with MOP function (Maximum Operating Pressure) and AEV (Automatic Expansion Valve). The control behaviour can be monitored at a flow meter. Pressure and temperature sensors upstream and downstream of the expansion valve and at the evaporator outlet provide information about the state of the refrigerant and the degree of superheating. The locations of the temperature sensor at the evaporator output can be selected.
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1. The sphere is a circle, the tilt of the earth's axis is 66.5 degrees, and perpendicular to the equatorial plane.
2. The sphere is connected to the support by the earth's axis and can rotate freely and can stop at any position.
3. The products are made up of sphere and bracket.
4. Sphere diameter is 320 ± 5mm, plane scale 1/40000000.
The Kit uses the arts, innovation and adolescent-led projects as methods to achieve those outcomes. Flexible and adaptable, the Kit can be used in a range of programming contexts, including recent-onset emergencies and protracted crises, as well as other low resource environments. The purpose of the Kit is to promote positive outcomes for adolescents' psychosocial wellbeing, life skills and active engagement in their communities. The Adolescent Kit for Expression and Innovation is a package of guidance, tools and supplies to support country programmes to reach and engage adolescents ages 10-17 affected by conflict and other crises. It is also designed to be adapted to the developmental capacities, interests and priorities of the adolescents with whom it is used. The Kit can be used to support new programmes or introduced into ongoing initiatives.
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Safety adsorber for closed water circuit
Continuous process
2 adsorbers with activated carbon filling
Water temperature control
Digital temperature indication
Adsorber with 8 sampling points
Metering pump for concentrated adsorbate solution
Change of adsorbate concentration and contact time
Pump for recirculating the treated water
Flow rate adjustable.
Continuous adsorptive air drying
2 compressors to deliver the feed air and regenerative air out of the ambient atmosphere
Humidification of the feed air by flowing through a water bath
Adjustment of regenerative air and feed air flow rates by valves
2 columns for alternating charging and regeneration of the adsorbent
Adjustment of relative humidity and temperature of feed air by heater
Heater for temperature adjustment of the regenerative air
Observation of mass transfer zone by using transparent columns and adsorbent with indicator
Circular system with pump and refrigeration system to adjust the water bath temperature.
Adult, airway trainer for realistic training of oral and nasal intubation.
Fully articulating head and neck permitting the operating training of endotracheal intubation and artificial respiration by ventilation mask. Anatomically accurate full sized mouth, tongue, teeth, airway, oesophagus, lungs and stomach. Multi-functional adult airway trainer for training endotracheal tube placement. Soft neck with cricocartilage permits classic Sellick manoeuvre. With flexible, wide and straight epiglottis, vocal cords. Realistic trachea, oesophagus, bronchi and lungs to permit observable uni or bilateral lung expansion with positive pressure ventilation.
Easy to clean and maintain.
Allows use of the airway guedel.
Realistic flashback and realistic feel of puncture through artificial skin and vein injection sites. Easily replaceable skin and veins withstanding multiple needle sticks. Realistic simulation of intramuscular and subcutaneous injections with accurate landmarks. Life-size adult arm with realistic anatomical features. Venous access sites available in the antecubital fossa, alongside of forearm and on the dorsum of the hand.
Easily cleanable.
Can provide simulation of: tourniquet position, venepuncture, IV therapy, including by bolus, infusion therapy, blood collection with artificial blood and aseptic techniques.
Epidural and spinal injection simulator to perform both lumbar puncture and epidural procedures.
Realistic tactile feedback, epidural space, dura, subarachnoid space with fluid supply system
Reliable palpable anatomical landmarks (iliac crests and spinous processes L3/L4 or L4/L5) for orientation of user to access points
Lower torso segment with multilayer lumbar puncture inserts
Can be positioned in both the upright and lateral decubitus positions for various training scenarios
Realistic tissue response including loss of resistance when entering the epidural space
Needle insertion possible between vertebrae to the epidural space for injection of local anaesthetic or access into the subarachnoid space to perform a ‘spinal tap’
Durable, easy to clean and maintain
For training in aseptic techniques at puncture site.
The trainer can be used in a classroom environment for demonstrations to students. ABS braking and ATC traction control events can be easily demonstrated while students observe component operation. The Advanced Air Brake Trainer with ABS/ATC/ESP is a complete truck braking system with antilock brakes (ABS), automatic traction control (ATC) and electronic stability program (ESP). Wheel speed acceleration and deceleration cycling during ABS and ATC application can be observed at individual digital wheel speed readouts located at the wheel. Air pressure gauges are strategically positioned throughout the system to show valve operation and air lines are color coded to SAE standards. All valves and components are new and are fully functional with the exception of the air compressor.
Educational Advantages:
Being smaller than a truck, students can easily perform hands on operations
Only requires 120VAC power source and a 135-140 psi air supply
Students can observe tractor/trailer component operation in a classroom environment
Show real ABS and ATC operation
60+ real world faults.
