IntelliK water treatment plant, for surface water

The surface water treatment plant are made of simple physico-chemical treatment systems which are designed to provide drinking water. Their design is compact, and they are built in order to ensure minimal space to be containerized.

    • Pumping water system from the entry into the tubular reactor (rough materials retention prefilter included)
    • Dosing reagent system
    • Additive dosing for PH adjustment
    • Oxidants dosing (sodium hypochlorite, potassium permanganate, etc.)
    • Additive dosing for flocculation-coagulation
    • Lamella settler
    • Treated water tank
    • Pumping the treated water into the filters
    • Automatic filters for turbidity retention
    • Chlorination

Drinking water storage and pumping

The supply water, free of solids such as gravel, leaves, etc., is sucked by a centrifugal pump equipped with a protective prefilter to retain solids.

Next, the water enters a tubular reactor with forced circulation, where are injected the appropriate chemicals in order to obtain the pH values prescribed for drinking water. In this phase there are also dosed coagulation / flocculation agents for a more advanced solids settling of  and oxidants for pre-oxidation of certain substances that give color or contaminate water (iron, manganese, ammonia, nitrates, organic substances, microorganisms such as bacteria, algae, plankton, etc.). Dosage is performed using electromagnetic diaphragm metering pumps, resistant to all used substances and mounted on their tanks.

Next the water is send to a special designed lamella settler in order to obtain an advanced solids deposition, in the smallest space available and according to a specific retention time for the precipitatation of certain materials from raw water.

Lamellar settling tank contains various components, each with its particular function. The first is water inlet chamber, which already contains the appropriate chemicals. In the second chamber there are sets of blades that allow water to flow up through the channels, leaving the solids behind the walls, thereby purifyng the water. Solids fall to the bottom where the mud is colected.

In the following stage, the water enters a tank from where is sucked by a centrifugal pump and discharged in two filters in order  to reduce turbidity, where fine particles (bigger than 5-10 microns) which could not be retained in lamellar settling, are removed. The filter system consists of a dual battery that feeds two automatic filters with quartz sand of 0.5-1.2 mm. The two filters are automatically washed in counter-current at a predetermined time. In this way ensure long usage of the filter with a very low maintenance cost.
Once filtered, the water is chlorinated by appropriate dosage to maintain a free residual chlorine content which guarantees the drinkability of the water. Chlorination occurs through an electromagnetic metering pump membrane. The purifyed water is led into a storage tank and is delivered to the consumer through a pumping group.
Intelli K type Flow Dimensions (L x w x h) Number of containers
K10 10 m3/h 5 x 2,2 x 2,2 m 1
K15 15 m3/h 5,3 x 2,2 x 2,2 m 1
K20 20 m3/h 6,9 x 2,2 x 2,2 m 1
K30 30 m3/h 9,2 x 2,2 x 2,2 m 1
K40 40 m3/h 10,7 x 2,2 x 2,2 m 1
K50 50 m3/h 12,5 x 2,2 x 2,2 m 2
K80 80 m3/h 13,6 x 2,2 x 2,2 m 2
K100 100 m3/h 9 x 4 x 2,2 m 2
K120 120 m3/h 11,6 x 5,2 x 3,5 m 3
K160 160 m3/h 9,5 x 7,3 x 3,5 m 3
K200 200 m3/h 9,7 x 7,5 x 3,5 m 3
K250 250 m3/h 10,5 x 10 x 3,5 m 4

IntelliK Underground Water Treatment Plant

Underground water treatment plant are planned and designed based on physico-chemical parameters of that water that will be treated, in order to make it drinkable.
The installations are constructed in order to ensure the container space optimization.

The water treatment process plan for underground water

EQUIPMENT:

1. Dosing pumps
2. Reaction and storage tank
3. Pressure tank water pump
4. Sediment retention filter
5. Manometer
6. Isolation valve
7. Multimedia automatic filter
8. Birm automatic filter
9. Activated carbon automatic filter
10. Automatic softening plant
11. Automatic denitrification station
12. UV final sterilization

From the general plan, according to underground water properties, will choose only the necessary equipment.
In installations, depending on the flow rate required for each application, automatic filtration stations, softening, denitrification station can be Simplex or Multiplex.
In special applications, installations can be completed with reverse osmosis systems, electrodeionization, ultrafiltration, ozonation systems.

STUDY CASE:

Drinking water treatment plant – 80 m3/h, designed for MAREX S.A. – a company from the meat and derived industry

The input data were the basis for the plant dimensioning: 
  • The raw water: underground water (mixture of water from several drilling wells)
  • Required flow rate: 80 m3/h
  • The water analysis report which revealed the following severe exceeding physicochemical parameters: color, ammonium, iron, sodium, and the presence of humic acids
  • Pumping the water into the storage tank
  • Dosing the oxidant (sodium hypochlorite) in the supply pipeline tank reaction in order to eliminate ammonia, iron and humic acids
  • Pumping the pretreated water in sand automatic filter in order to retain tthe precipitates formed by oxidation
  • Filtration through activated charcoal filters to fade, retain residual chlorine and organic compounds product from ammonium decomposition
  • Partial desalination by reverse osmosis system used to reduce sodium content in the final treated water
  • Antiscalant dosage before the reverse osmosis system, to protect semipermeable membranes
  • Final water desinfection, before the delivery to the final consumer, using UV sterilization and chlorination
  • Dozare de antiscalant in amonte de instalatia de osmoza inversa, pentru protejarea membranelor semipermeabile
  • Dezinfectie finala apa livrata la consumator prin sterilizare cu ultraviolete si clorinare proportinala cu debitul livrat

The supply water, free of solids such as gravel, leaves, etc., is sucked through a pumping station which includes 2 pumps: an active one and the reserve, and delivered to a concrete tank, with a storage capacity: 400 m3.

In order to increase the rate of oxidation of manganese and oxidizable organic matter and to remove ammonia and humic acids a certain quantity of sodium hypochlorite with a maximum chlorine content is dosed on the pump discharge pipe. This procedure ensures a permanent antibacterial protection.
Raw water is storage in the  400 m3 tank about 5 hours, during which occurs two process:  manganese and organic matter oxidation and the decomposition of ammonia and humic acids.
Pumping pretreated water in automatic sand filters trough a pumping group equipped with inverter.
Pretreated water filtration in order to retain the precipitate result after oxidation occurs in the battery with 2 automatic quartz sand filters, pressurized. We retain fine sediments up to 10 microns and particles in suspension, which leads to substantial turbidity reduction . Retained materials are expelled to channel on filter medium backwash phase.
Next step accomplish the clarified water filtation through eight automatic filters with activated charcoal for stripping and retaining organic compounds from the decomposition of ammonia. Charcoal filters are arranged in two parallel working lines (4 on the line), one of which feeds reverse osmosis plant to obtain desalinated water in 97%, and the other deliver directly treated water to the pipe that feeds the consumer.
Reverse osmosis plant was provided to demineralize part of total water delivered to the consumer, so that, when mixed with water supplied directly from the first line of activated charcoal, lead to substantial reduction of sodium ion content whose presence in excess can negatively alter the taste and other properties of drinking water.
Upstream of reverse osmosis antiscalant dosing is to protect semipermeable membranes of osmosis.
On final water distribution pipe to the consumer, is a mix of demineralised water by reverse osmosis water resulting from the first line of activated charcoal, a mild chlorination for disinfection and sterilization by ultraviolet final on the 3 branches of the distribution pipe.