Manganese Zeolite for Water treatment plant

Geomangan is formulated from a glauconite greensand and is capable of reducing iron, manganese and hydrogen sulfide from water through oxidation and filtration. Soluble iron and manganese are oxidized and precipitated by contact with higher oxides of manganese on the greensand granules. The hydrogen sulfide is reduced by oxidation to an insoluble sulfur precipitate. Precipitates are then filtered and removed by backwashing. When the oxidizing capacity power of the Manganese Greensand bed is exhausted, the bed has to be regenerated with a weak potassium permanganate (KMnO4) solution thus restoring the oxidizing capacity of the bed. 1½ to 2 ounces of potassium permanganate, in solution, per cubic foot of Manganese Greensand is considered sufficient for normal regeneration. It is required to vigorously backwash and regenerate the bed when it is placed in service and before its oxidation capacity is totally exhausted. Operating the bed after oxidation capacity is exhausted will reduce its service life and may cause staining.

 ADVANTAGES
• Iron reduction over wide pH range
• Effective reduction of hydrogen sulfide in addition to iron and/or manganese
• No harmful effects from a chlorine feed
• Low attrition for long bed life.
 

PHYSICAL PROPERTIES
• Color: Broun
• Bulk Density: 80 lbs./cu. ft.
• Specific Gravity: 2.4-2.9
• Effective Size: 0.30-0.35 mm
• Uniformity Coefficient: 1.6
• Mesh Size: 18-60
• Attrition Loss Per Year: 2%
CONDITIONS FOR OPERATION
• Water pH range: 6.2-8.5
• Maximum water temperature: 80°F/26.7°C
• Bed depth: 30 in.
• Freeboard: 50% of bed depth (min.)
• Regeneration: 1.5-2 oz of KMnO4 by weight per cu. ft. 
• Service flow rate: 3-5 gpm/sq. ft., 8-10 gpm/sq. ft. intermittent flow possible
• Backwash flow rate: 10-12 gpm/sq. ft.
• Backwash bed expansion: 40% of bed depth (min.)
• Maximum practical limit of iron (Fe++) or manganese (Mn++) in raw water: 15 ppm
• Maximum practical limit of hydrogen sulfide (H2S): 5 ppm
 INTERMITTENT REGENERATIONS
• 10,000 gallons of water containing 1 mg/L Iron per cu.ft. regeneration
• 5,000 gallons of water containing 1 mg/L Manganese per cu.ft. regeneration
• 2,000 gallons of water containing 1 mg/L Hydrogen Sulfide per cu.ft. regeneration
• For dilute solutions mg/L = ppm
• 37,850 mg KMnO4 demand 
• KMnO4 demand = [1 x mg/L Fe] + [2 x mg/L Mn] + [5 x mg/L H2S]

Granular Activated Carbon for water treatment plant

Specifications of Granular Activated Carbon 

Our Activated Carbon is genuinely activated and it is an extremely porous material that attracts and holds a wide range of harmful contaminants. Activated carbon is carbon which has a slight electro-positive charge added to it, making it even more attractive to chemicals and impurities. As the water passes over the positively charged carbon surface, the negative ions of the contaminants are drawn to the surface of the carbon granules.

Product: Coal Base Granular Activated CarbonOrigin: IndiaMesh Size: 4/8Packing: 25kgs per Bag
How it Works: There are two principal mechanisms by which activated carbon removes contaminants from water; adsorption, and catalytic reduction, a process involving the attraction of negatively-charged contaminant ions to the positively-charged activated carbon. Organic compounds are removed by adsorption and residual disinfectants such as chlorine and chloramines are removed by catalytic reduction. 

Details Specifications:
Appearance      : Black GranularMoisture           : max 5%Hardness          : min 85%pH                    : 9-10Iodine Value      : 600-700 mg/gm minBulk Density     : 0.50 g/ltrAsh                  : max 5%Surface Are       : 500m2/gmCTC Adsorption : min 45% 
Application: Activated carbon filtration is very common in a number of home water treatment and Industrial Water Treatment systems. It can be used as a standalone filter to reduce or eliminate bad tastes and odors, chlorine, and many organic contaminants in municipal (pre-treated or chlorinated) water supplies to produce a significantly improved drinking water. It is also very commonly used as a pre-treatment as part of a reverse osmosis system to reduce many organic contaminants, chlorine, and other items that could foul the reverse osmosis membrane. 0.5 micron carbon block filters are commonly used to remove cysts such as giardia and cryptosporidium. 
Typical Maintenance: Activated carbon filters require very little maintenance, however, it is very important to ensure that filter replacement schedules are followed to ensure proper filtration at all times. Do not wait for bad tastes and odors to return to the water before deciding the filter needs replacement as this is an indication that the filter is no longer able to completely remove contaminants and that it has surpassed its service life

IRON AND MANGANESE REMOVAL MEDIA

ADVANTAGES
•   Under the proper conditions, no chemicals to purchase for maintenance. Regeneration not required. 
•   Iron removal efficiency is extremely high. 
•   Negligible labor cost: only periodic backwashing required. 
•   Durable material with a long life and wide temperature range. 
•   Weighs only 35-40 lbs./cu. ft. 
PHYSICAL PROPERTIES
•   Color: Black 
•   Bulk Density: 35-40 lbs./cu. ft. 
•   Mesh Size: 10 x 40 
•   Specific  Gravity: 2.0 gm/cc 
•   Effective Size: 0.48 mm 
•   Uniformity Coefficient: 2.7 
CONDITIONS FOR OPERATION
•   Alkalinity should be greater than two times the combined sulfate and chloride concentration. 
•   Maximum water temp: 100oF/38oC 
•   Water pH range: 6.8-9.0 
•   Dissolved Oxygen (D.O.) content must be equal to at least 15% of the iron (or iron and manganese) content. 
•   Bed depth: 30-36 in.

•   Freeboard: 50% of bed depth (min.) 
•   Backwash rate: 10-12 gpm/sq. ft. 
•   Backwash Bed Expansion: 20-40% of bed depth (min.) 
•   Service flow rate: 3.5-5 gpm/sq. ft. intermittent flow rates and/or favorable local conditions may allow higher flow rates 
INFLUENT AND BACKWASH
LIMITATIONS
•   Free chlorine concentration less than 0.5 ppm 
•   Hydrogen Sulfide should be removed prior to contact with Birm media 
•   Oil: None Present 
•   Polyphosphates: None present 

Birm® is an efficient and economical media for the reduction of dissolved iron and manganese compounds from raw water supplies. It may be used in either gravity fed or pressurized water treatment systems. Birm acts as an insoluble catalyst to enhance the reaction between dissolved oxygen (D.O.) and the iron compounds. In ground waters the dissolved iron is usually in the ferrous bicarbonate state due to the excess of free carbon dioxide and is not filterable. Birm, acting as a catalyst between the oxygen and the soluble iron compounds, enhances
the oxidation reaction of Fe++  to Fe+++
and produces ferric hydroxide which precipitates and may be easily filtered. The physical characteristics of Birm provide an excellent filter media which is easily cleaned by backwashing to remove the precipitant. Birm is not consumed in the iron removal operation and therefore offers a tremendous economic advantage over many other iron removal methods.
Other advantages of Birm include; long material life with relatively low attrition loss, a wide temperature performance range and extremely high removal efficiency. Negligible labor costs are involved because Birm does not require chemicals for regeneration, only periodic backwashing is required.
When using Birm for iron removal, it is necessary that the water: contain no oil or hydrogen sulfide, organic matter not to exceed 4-5 ppm, the D.O. content equal at least 15% of the iron content with a pH of 6.8 or more. If the influent water has a pH of less that 6.8, neutralizing additives such as Clack Corosex®, Calcite or soda ash may be used prior to the Birm filter to raise the pH. A water having a low D.O. level may be pretreated by aeration.

 

Additions of chemicals to influent or backwash water which contacts Birm media may inhibit iron or manganese removal or may break down or coat Birm media. Chlorination greatly reduces Birm's activity. High concentrations of chlorine compounds may deplete the catalytic coating. Polyphosphates are known to coat Birm and reduce Birm's ability to remove iron or manganese. Before adding any chemical to the influent or backwash water, the  chemical's compatibility with Birm should be thoroughly tested.

Clack Birm may also be used for manganese reduction with the same dependability as iron removal. In these applications the water to be treated should have a pH of 8.0-9.0 for best results. If the water also contains iron, the pH should be below 8.5. High pH conditions may cause the formulation of colloidal iron which  is very difficult to filter out. All other conditions remain the same for either manganese or iron removal.
 

*Weight per cubic foot is approximate Birm®  is a federally registered trademark of Clack Corporation.

CALIFORNIA PROPOSITION 65 WARNING: This product contains crystalline silica which is known to the State of California to cause cancer and other substances which are known to the State of California to cause cancer, birth defects and reproductive harm.

The information and recommendations in this publication are based on data we believe to be reliable. They are offered in good faith, but do not imply any warranty or performance guarantee, as conditions and methods of use of our products are beyond our control. As such, Clack makes no express or implied warranties of any kind with respect to this product, including but not limited to any implied warranty of merchantability or fitness for a particular purpose. We recommend that the user determine whether the products and the information given are appropriate, and the suitability and performance of our products are appropriate, by testing with its own equipment. Specifications are subject to change without notice

The information and recommendations given in this publication should not be understood as recommending the use of our products in violation of any patent or as a license to use any patents of the Clack Corporation.
The filter medias listed in this brochure do not remove or kill bacteria. Do not use with water that is microbiologically unsafe or of unknown quality without adequate disinfection before or after the system.
Clack will not be liable under any circumstance for consequential or incidental damages, including but not limited to, lost profits resulting from the use of our products.

Taste and Odor Filter for Water Treatment

Model No: T33-02This filter removes objectionable tastes and odors to enhance the quality of your drinking water for Water Treatment. We are using NSF approved post carbon to guarantee the taste of water.
FEATURES: Active carbon inlineRemove sedimentsTaste chlorine and odor reductionMax flow: 0.75GPMMax pressure: 125 PSIMax Temperature: 100.F

APPLICATIONS:IcemakersRefrigeratorsRO systems for Water TreatmentDrinking fountains for Water TreatmentCoolers

Manual Multiport Valve for Filter Vessel

MANUAL MULTIPORT VALVE

FEATURES: 1) It adopts the seal slice with high degree pottery, scuff resistance, corrosion proof for    opening and closing. 
2) Reasonable fluid design: Filter-Fast Rinse-Backwash
3) Small rotation angle for closing and opening. It feels good for operation. 
4) It could operation with pressure, leak proof. 5) Perfect sealing, and long time for using

TECHNICAL PARAMETER: 1) Control Mode: Manual 
2) Suited Pressure: 0.1~0.6MPa 
3) Suited Water Temperature: 5--45 
4) Maximal Water Treatment Capacity: 6 m3/h
5) Tank Diameter for matching: 6- 12 
6) Water Inlet/Outlet: 1F (Female Thread) 
7) Drain Outlet: 1F (Female Thread) 
8) Riser Pipe: 1.05 OD (26.7mm) 
9) Base (Tank thread): 2-1/28NPSM 
10) Material: PPO or ABS (optional) 

RANGE OF APPLICATION: Household purification, softening system 
Boiler softening water system 
RO pre-treatment system 
Swimming pool filters equipment 
Ion exchange equipment

Reverse Osmosis(RO) Membrane (50GPD CSM) For Water Treatment

RESIDENTIAL Reverse Osmosis(RO) MembraneRO(Reverse Osmosis) Elements for Residential use (1.8 inch diameter)Model No: RE-1812-50, Capacity: 50 GPD

Water is one of the most essential elements for sustaining human life. However, we face health risks from exposure to microbial & various contaminants that may be present in the water we drink. With the use of CSM’s Residential RO(Reverse Osmosis) Membranes, 100% of viruses and over 99% of chemical substances are removed meaning we can enjoy clean, great tasting and most importantly safe water at home.

Specification:Membrane Type: Thin-Film CompositeMembrane Materials: Polyamide (PA)Elements Configuration: Spiral-Wound, Tap Wrapping  Applied Pressure: 50 PSI (3.4 Bars)Flow Rate: 50 GPD (7.9 LPH)Stabilized Salt Rejection: 98%
The stated product performance is based on data taken after 30 minutes of operation at the following test conditions: 

• 200 mg/L NaCl solution at 60 psi (0.41 MPa) applied pressure 
• 15% recovery 
• 77 oF (25 oC) 
• pH 6.5–7.0

Dry type elements are vacuum leak tested using the San Diego Protocol.Permeate flow rate for each element may vary but will be no more than 15%.Dry elements are packaged in a polyethylene bag ¤ Wet elements are packaged in a polyethylene bag containing SB(4g/L) + HCl(0.51g/L) solution.
Operating Limits:Maximum Operating Temperature: 113° F (45°C)Maximum Operating Pressure: 125 psig (0.86 Mpa)Maximum Feed Flow Rate: 2.0 gpm (7.6 lpm)Maximum Turbidity: 1.0 NTUpH Range, Continuous Operational: 2 – 11Maximum Feed Silt Density Index (SDI): 5Free Chlorine Concentration : < 0.1 mg/L
The information provided in this document is solely for informative purposes. It is the user’s responsibility to ensure the appropriate usage of this product. Woongjin Chemical assumes no obligation, liability or damages incurred for the misuse of the product or for the information provided in this document. This document does not express or implies any warranty as to the merchantability or fitness of the products.

SEWAGE SUBMERSIBLE PUMP WITH STAINLESS STEEL CASING

SEWAGE SUBMERSIBLE PUMP WITH STAINLESS STEEL CASING
APPLICATION: Sewage discharge for municipal works, construction works, factories, mine enterprises, water project.
FEATURES: It uses H200 grey cast iron, and steel motor housing, double mechanical seals, F insulation grade motor, It is light, small in size.

 

CENTRIFUGAL PUMP (CP) For Water Treatment Plant

CENTRIFUGAL PUMP (CP) Application : Various application included transfer and circulation pump for cold and hot water system, Marine installation, Fire fighting application, Irrigation, Agriculture etc.. Design : The centrifugal pump-CP is a end suction, Horizontal,  Back pull out pump in accordance with DIN 24255.  Seal Arrangement : Either a soft packed gland or mechanical seal can be used. Stuffing box cooling can be provided for high temp.

Products Range : Maximum Flow : Up to 500 m/h Maximum Head : Up to 100 Meter Maximum Pressure : Up to 16 Bars Maximum Temperature : Up to 200C Standard Materials : CI, Bronze & Gun Metal Shaft and Shaft Sleeve : Stainless Steel Impeller Type : Closed / Semi Open

 CROSS SECTIONAL DIAGRAM

PERFORMANCE CURVES :

Mud Pump Sewage Treatment Plant

Application:
1.     Waste Water Transfer2.     Sewage Works3.     Muddy Water Transfer4.     Construction Firm5.     Industrial Water
Performance Range:1.     Capacity up to 1800m3/h2.     Head up to 66m3.     Temperature up to 500C4.     Power up to 90KW 5.     Rpm 1450/2900
Standard Materials:1.     Cast Iron casing2.     SS Shaft 3.     Cast Iron Impeller 

Available Stock 

Model	Power	Description	Capacity	Head
50WQ10-10-0.75	0.75 KW	50HZ/415V/3Phase/2900RPM	10 m3/h	10 m
50WQ15-8-1.1	1.1 KW	50HZ/415V/3Phase/2900RPM	15 m3/h	8 m
65WQ25-10-3	3 KW	50HZ/415V/3Phase/2900RPM	25 m3/h	10 m
80WQ50-7-2.2	2.2 KW	50HZ/415V/3Phase/2900RPM	50 m3/h	7 m
100WQ60-9-3	3 KW	50HZ/415V/3Phase/2900RPM	60 m3/h	9 m
150WQ120-10-7.5	7.5 KW	50HZ/415V/3Phase/1450RPM	120 m3/h	10 m

 
We can also supply as per customer requirements, for details please email marketing@greendotbd.com or call 88 01617141134,  01678620101

Ozone Generator

The A2Z Model Z-10G ozone generator (ozonator) is designed specifically for disinfection and oxidation of water in industrial, laboratory and pilot plant applications. Typical applications include drinking water, process water loops, recycling processes, food and beverage industries, cooling towers, aquaculture, aquariums and swimming pools. The components of the Model Z-10G are mounted in a rugged stainless steel cabinet, and all parts that come into contact with oxygen and ozone are made of stainless steel, glass or Teflon.

The Model Z-10G ozonator uses a fan-cooled Corona Discharge (CD) tube to generate ozone from a variety of pressurized sources such as compressed air, bottled oxygen or an oxygen generator. The Model Z-10G also has a built- in light duty air compressor to generate its own compressed air. The result is high ozone concentration yields at low energy demand.

Switches and LED status indicator lights are provided for the ozone generator and the air compressor. The concentration of ozone discharged is controllable from 0 to 100% by a dial potentiometer to vary the current to the CD tube, as displayed on a 300-800mA amp meter.  Should the unit stop making ozone for any reason, a fault warning light is displayed. The unit is protected electrically by an externally accessible fuse.

The Model Z-10G ozonator comes complete with pre-installed fittings and all required tubing, enabling it to be installed and running in less than ten minutes.  It is maintenance free, 
         
Product Features

• Oxygen concentrators feature professional rotating distribution valves for reliable and long service life.
• Extra oil-less pump synchronization socket outlet.
• Adjustable indicates oxygen flow through systems.
• 0 -100% ozone output variable
• Door switch, overheating switch
• Current overdraw circuit breaker and fuse(s)
• Module designed for easy service and maintenance
• Gray ABS engineering plastic enclosure
• Air cooled, Floor mounted.

 
Technical Specification:

Size (L x W x H)	:	380 x 280x 635
Weight	:	16 Kgs
Sound Level	:	Less than 35BA
Power Consumption	:	20 Watts average, 0VAC 50 Hz
Ozone output	:	10 gr/hr
Cooling	:	Forced air (fan)
Input Flow Rate	:	Adjustable from 0.1 to 4 ltr/min or 8 cf/hr
Origin	:	Taiwan

Oxygen Concentrator

Oxygen Concentrator

An Oxygen Concentrator is a machine that generates oxygen for industrial and medical use. It runs on electricity and the only maintenance required is the regular cleaning of filters. The Nuvo Oxygen Concentrator has been designed to provide a combination of enhanced features, reliability of a proven technology and unsurpassed quality. The Nuvo Oxygen Concentrator is the largest selling concentrator in USA. We promise you complete satisfaction and convenience.

Product Features: 
·         Quiet Operation - Sound Level less than 47 dBA.
·         Lightweight - 22.7 Kgs - Easy to move.
·         Slender & Sleek design with integrated handle.
·         Easy access to filters.
·         Superior grade of molecular sieve.
·         Patented maintenance free rotary poppet valve.
·         Exclusive moisture reducing wick assembly.
·         Reinforced base with recessed casters to guard against breakage.
·         Spring mounted high efficiency Thomas compressor.
·         Patented RPSA (Rapid Pressure Swing Absorption.
·         Simple design for ease of use & maintenance.

Technical Specification:

Size (L x W x H)                  :  394mm x 396mm x 706mm

Weight                                 :   22.7 Kgs

Sound Level                        :  Less than 47 dBA

Power Consumption          :  400 Watts average

Safety Alarms                     :  Power Failure- Process Failure- High / Low Pressure- Low Oxygen

Oxygen Purity                     :  0-2 LPM - 94% / 2-4 LPM - 93% / 5 LPM - 90%

Outlet Pressure                  : 7 psi

Filters                                  :  Cabinet, Compressor Intake and Bacteria

Origin                                  :  USA