Author Archives: Admin

Shaftless compactor

Posted on by
CP Shaftless screw compactor 4
CP Shaftless screw compactor 2

DESCRIPTION AND WORKING PRINCIPLES

The X-S-COMP Shaftless screw compactor allows to combine three operations: draining, conveyng, compacting. The machine consists of three sections: the draining section, usually placed before the hopper where the majority of the water is discharged; the conveying section, that moves the material to the compacting/dewatering section, where both the volume and the weight reduction take place (up to 50%).

The screw is usually connected directly to the drive system. The working range of the machine is 5° to 35°.

The operation of the machine starts from the entrance of screenings in the hopper. The material is then conveyed up to the area of compaction and dehydration through the shaftless screw conveyor, then is downloaded into a bin. The volume of the screenings can achieve a reduction of up to 40% or more. The water drained from the compaction zone is conveyed at the entrance of the machine, where it can be discharged or possibly reused for other treatments.

MANUFACTURING FEATURES

  • Screw: high strength carbon steel or stainless steel AISI 304/316
  • Structure: galvanized iron or stainless steel AISI 304 or 316
  • Length: the maximum length depends on the overall specifications (power and diameter) and can be up to 20 meters.
  • Trough Protection: HDPE liner or bolted stainless steel wearing bars.
  • Drive: the maximum power and depends on the inclination, the flow rate and the length

As an option, we can provide a bagging single or continuous system, both with the function of collecting the screeningin order to should not come in contact with the staff of the plant, and also to avoid the escape of odors. The machine can also be supplied of a system of automatic washing commanded by a solenoid valve for the drainage area and compaction.

Screening and washing press

Posted on by
Screenings washer and compactor 800
Screenings washer and compactor2 800

DESCRIPTION AND WORKING PRINCIPLES

The X-COMP screw compactor combine two operations: washing, compacting screenings. It can be placed directly under the screen or fed with a conveyor. The machine consists of inlet hopper connected with a tubular section (draining section) with a perforated bottom for water discharge; the hopper can be equipped with a supplementary washing system in order to increase the organic matter removing. Along the transport section, a nozzles system performs the screenings washing, until the compacting section.

The compacting counterforce is realized by means of a “trunk” shaped discharge tube. The high compacting rate and the screenings washing allows to reduce disposal costs and odour problems.

MANUFACTURING FEATURES

  • Screw: high strength carbon steel or stainless steel AISI 304/316
  • Structure: stainless steel AISI 304/316

MAIN ADVANTAGES

  • High screenings compacting achieve (up to 60%)
  • Odour problems reduction
  • Disposal costs reduction
  • Easy installation
  • Low and easy maintenance required (no weldments required)

Polyelectrolyte preparation and dosing station

Posted on by
Polyelectrolyte preparation

DESCRIPTION AND WORKING PRINCIPLES

The polyelectrolyte preparation and dosing station is devised especially for the production of base solutions or solutions using synthetic flocculants (polyelectrolytes). These solutions can be used in all cases where colloidal substances need to be separated from waste water. The user inserts the data regarding the concentration of the solution, the hydraulic calibration of the powder metering device and the liquid concenetrate pump, according to the work requirements at the time.

MANUFACTURING FEATURES

The automatic mixing plants with two or three chambers for flocculant substances in powder form for producing a dosing solution of 0.05 and 0.5% consist of:

  • Combined container in stainless steel for preparing, maturing and storing polyelectrolyte, with reinforcements and brackets for the other aggregates;
  • Bottom and overflow discharges in stainless steel (min 70 lt.)
  • Metering device for dry substances, of variable capacity, and loading hopper with hinged cover and seal, propeller with three-phase motor and variable speed;
  • 2 or 3 low-speed electric agitators in AISI 304 stainless steel with motor;
  • Pipes for metering the concentrated liquid;
  • Washing system for washing and dampening the powder, with a washing device, nozzle, flow measuring device and a set of fittings for the water solution.

Modular thickener dehydrator

Posted on by
Modular Thickener Dehydrator

This new range of machines provides a solution to the increasing problem of thickening and sludge dewatering. It certainly represent a valid alternative to the machines currently used such as, for example, a conventional dynamic thickener. The thickener – dehydrator has been developed in two different versions: the X-RA, and the X-RAD, both modular. The model X-RA is composed of a reactor for the flocculation and a dynamic thickener. In the version X-RAD is installed, in addition to the previous ones, the module for the mechanical dewatering of the sludge. The module for the mechanical dewatering of the sludge can also be installed at a later stage, and allows to avoid the plant stoppage.

Indeed, in the case in which X-RAD is installed in combination with other equipment for the dewatering of sludge (eg. centrifuge, belt press..), and that the latter needs a maintenance (ordinary or extraordinary), the third module will replace the function of the one in maintenance.

X-RA and X-RAD have, inside the drum, a screw conveyor with shaft with a conical section. Before the drum, the flocculation takes place, thanks to the addition of the polyelectrolyte into the sludge, which subsequently reaches the dynamic thickener. In this module, washing nozzles at high pressure constantly maintain clean the screen basket (necessary and essential condition for the result), that usually is of wedgewire type. On request, installing a system of self-cleaning nozzles, is possible to use as backWash water the one recovered from the collection hopper, positioned under the drainage area. Depending on the concentration of mud in the input, this type of machine can get to manage a flow of sludge in input up to 25-30 m3/h. The main materials of construction are stainless steel AISI 304 and stainless steel AISI 316.

On request, can be supplied, in addition, the system of preparation and dosing of polyelectrolyte (in the version with storage tank in stainless steel or polyethylene) and can be included the electrical control panel and can be studied customizations requested by the customer, in order to make the machine adaptable to any existing plant or not.

The main advantages are:

  • Low installation and management costs
  • Completely closed and compact unit, which limits odors and, in general, the environmental impact in the place where it is installed.
  • Reduced energy consumption for its use.
  • Machines do not have any zone or area prone to wear and tear caused by the rubbing of metal parts, and therefore the costs of maintenance and management are in general very low.

MAIN APPLICATIONS

Typical installations are those of the X-RA upstream of a centrifuge, a belt press, or any other machine for sludge dewatering and, given the high returns that the X-RA can provide, install it before any of these equipment, optimize the process. In the version X-RAD, with the addition of the module for the mechanical dehydration of the sludge, the machine can be used for installations of civil or industrial plant, with small / medium size, as a single solution, avoiding the use of other systems for dehydration.

Septage acceptance unit screening

Posted on by

DESCRIPTION AND WORKING PRINCIPLES

SEP is a machine used to pre-treat wastewater from cesspools, recieved directly from a tank truck connected to the machine by a quick connection end pipe, Perrot type, DN100. Wastewater is screened to remove larger particles and then screenings (removed particles) are washed to remove organic matters and compacted before being disharged. This washing phase allows to reduce odour problems. The machine consists of a receiving tank provided with a quick connection and an electromechanical ball valve, a screw screen with compacting system before the outlet spout. Both the tank and the screw screen are equipped with a washing systems to remove organic matters from the screenings.

 

MANUFACTURING FEATURES

  • Screw: high strength carbon steel or stainless steel AISI 304/316
  • Structure: stainless steel AISI 304/316
  • Screen Basket: perforated sheet with 6mm holes
  • Trough Protection: bolted stainless steel wearing bars in AISI 304/316
  • Flow rates: 50 m3/h and 100 m3/h.

Pressure filter

Posted on by
Pressure filter
Pressure filter in

DESCRIPTION

Pressure filters are used in those cases where solid substances have to be mechanically filtered out of water. These filters help improve the final quality of the effluent after chemical-biological treatment of the waste water, or can complement the process of clarifying surface water for drinking or for industrial use. They remove the suspended solids and, therefore, the phosphorous and BOD associated with these, and eliminate turbidity, unpleasant odours and flavour, and metals such as iron and manganese.

 

MANUFACTURING FEATURES AND WORKING PRINCIPLES

The filter consists of a cylindrical tank made of steel, with three main sections. The water to be filtered flows through a pipe into the filtration chamber where it percolates through the quartz sand or active carbons in the filter bed. The water then flows through plastic nozzles in the collection chamber into the area below and through the outlet pipe for subsequent use. The backwash process, where a water/air mixture is ejected at high pressure from the base of the filter, occurs automatically at pre-configured times.

The frequency of the backwash process can be programmed according to the manometers at filter inlet and outlet which indicate the progressive load loss due to clogging of the filter bed. The plastic nozzles ensure uniform draining of the filtered water as well as uniform distribution of the backwash air/water mixture.

A remote control can be used to automate the cycle.

Disc Filter

Posted on by

DESCRIPTION AND WORKING PRINCIPLES

Microfiltration technology combined with the polymer disc permits filtration spans of between 10 and 150 μm and quality separation even in the presence of high hydraulic pressure or peak loads of suspended solids. The new and fast nozzle cleaning system requires little energy and water. The fluids flow from the inside towards the outside, so the suspended solids are captured in the filter and the filter container remains perfectly clean. The modular nature of the disc filtering station is such that the filter units can be made extremely compact with filtering surfaces of up to 8 sq m for each sq m of occupied space.

The polymer fabric offers the following benefits over loose-fibre fabric: no suspended solids pass through the fabric during the washing phase; no suspended solids accumulate in the fabric, so cleaning is more efficient; virtually no wear and simpler maintenance. The incoming water is introduced, through the center tube, between the pairs of discs normally stationary, having a canvas of filtration able to retain suspended solids of magnitude greater than the spacing of the canvas used.

The water flows by gravity through the canvases installed on the discs and the solids are retained accumulating on the inner surface. Reached a certain level of clogging, permanently monitored by a sensor is activated by the rotation of the discs, providing for the discharge of accumulated solids through an opening between them. At the same time the system is activated in pressure washing, carried out in countercurrent, consists of a set of nozzles, easily removable to ensure perfect cleaning of filter cloths.

  • Structure of the disc in stainless steel;
  • Type of filter element: Polymer filter fabric or AISI 304/316;
  • Tank for washing water;
  • Backwashing system: mobile arrays of nozzles and multi-stage pump;
  • Central shaft for supporting and feeding the filtering sections, made of stainless steel;
  • Transmission system consisting of a chain made of special steel connected to a pinion;
  • Control geared motor: with worm and helical gears;
  • Cover with mobile windows for inspecting the filtering discs.
  • Control board with IP55 protection.

APPLICATIONS
The uses of disc filters:

  • Capturing residual suspended solids after secondary sedimentation tanks due to rising swollen mud, floating foam and/or excessive hydraulic pressure;
  • Separation of excess mud after the submerged rollers, percolator filters and other biofilm processes, in lieu of conventional secondary sedimentation tanks;
  • Reducing the content of phosphorous in fluids released by existing or new systems, possibly in combination with floccular-filtration;
  • Separation of solid substances after chemicalphysical treatment of industrial sewage;
  • Pre-filtration for: biofilm nitrification processes, for UV sterilization, processes with membranes, for surface waters to be converted into drinking water;
  • Treatment of water for industrial use and for recycling;
  • Increasing the performance of lagooning systems.

Combined Unit with Degreasing System

Posted on by
Set 2 800

COMBINED UNIT WITH DEGREASED SYSTEM
The combined unit with degreasing system model SET 3 make a first screening with a screw screen placed on the top of the machine; the solids with dimensions major to the mesh are trapped. Thanks to a series of brushes mounted on the screw are rimoved the solids and are washed and compacted before the discharge. haks also to high pressure nozzles the screen remain without solids always. The water and the solids passed trought the screen are collected in a rectangular tank, where a blower create a whirling motion dividing the water form grit, grease and organic material; this last two remain on the surface of the water, while the grit decants on the bottom for the major specific weight where met a bottom screw that collect in a little tank the solids and an other screw lift up the solids bringing it at the external of the machine. The grease removal system is make by the whirling motion create by blower that push the grease on the opposite site of the blower where overflow in a appropriate channel; a nozzle with high pressure water bring out of the machines the grease. The clean water overflows out of the machine throught an appropriate hopper.

Mini Set 3

Posted on by
Mini Set 3

DESCRIPTION AND WORKING PRINCIPLES

It’s an equipment in the condition to complete the mechanical pre-treatment in the small wastewater treatment plants having a flowrate up to 30 m3/h. Screen screw compactor with the best efficiency in terms of solids capture ratio and dewatering of screenings. The grit removal system is able to capture up to 90% of grit having minimum size 200 microns. Grease removal system can obtain a separation of up to 80% of the grease present in the effluent.

Mini Set 2

Posted on by
Mini Set 2

DESCRIPTION AND WORKING PRINCIPLES

MINI.SET 2 is a combined equipment for screenings and grit removing; it represents the most economical solution to treat low flowrates. The incoming wastewater is filtred throught a screw screen than goes into the settling tank. The internal baffle system allows an efficient separation of the sand that is collected on the bottom of the tank and removed with a manual valve or solenoid valve.

MANUFACTURING FEATURES

  • Screws: high strength carbon steel or stainless steel AISI 304/316
  • Structure: stainless steel AISI304/316
  • Filtration: 0.5 – 6 mm
  • Flowrates: from 2 l/s to 13 l/s
  • Screen Basket: wedge wire/perforated plate