Reverse Osmosis

INTRODUCTION

In 2004, Pure Aqua successfully supplied an Industrial Brackish Water Reverse Osmosis (BWRO) system for NVE Pharmaceutical Factory in New Jersey. Two-train brackish water reverse Osmosis system has capacity of 160,000 GPD product water. The complete BWRO system was supplied with pre-chemical dosing system and membrane cleaning skid.

SYSTEM AND PROCESS

Feed water source to the system is well, raw water and TDS is about 1,500 PPM. The system was designed based on high rejection TFC spiral wound membrane with high system recovery, temperature range of 25?C to 34?C. The brackish water reverse osmosis systems were selected from our standard RO-400 series, model number BW-87K-3480, total permeate = 160,000 GPD of high quality industrial water with TDS less than 25 mg/l.

Read More

INTRODUCTION

In 2006, Pure Aqua successfully supplied, to a major heavy machine company, a water treatment package consisting of a Brackish Water Reverse Osmosis System (BWRO) to produce 80gpm of product from 113gpm feed, twin MLF-48A-F multimedia filters, twin ACF-48A-F activated carbon filters, antiscalant chemical dosing, and dechloronation dosing system.

SYSTEM AND PROCESS

Feed water to the system is processed water with raw water TDS of about 4,610 PPM. The system design was based on high rejection TFC spiral wound membranes. The Brackish Water Reverse Osmosis system was selected from our RO-400 Series, model number BW-130K-3680-5. It produces 80gpm of drinking water with TDS less than 100 mg/L.

PERFORMANCE

From a feed TDS of about 4,610 mg/L at temperature range of 15?C to 35?C, the brackish water plant produces 80gpm of drinking water with TDS less than 100mg/L. Since the time of its start-up in October 2006, the plant has been running smoothly with minimal trouble-shooting.

Read More

INTRODUCTION

In December 2006, Pure Aqua successfully supplied to a major power plant in HI, USA, a water treatment package consisting of twin Multi-Media Filters, model: MLF-48A-F-twin, Pretreatment System, Double Pass Reverse Osmosis Unit System, Electrodeionization System (EDI), Storage System, and RO cleaning system.

SYSTEM AND PROCESS

Pre-treatment of the feed water includes filtration using twin multi-media filters to remove sediment down to the 10-20 micron range providing service feed water with a flow rate of 126 GPM at a maximum operational pressure of 100 psi. Filtration using Activated Carbon Filters with Carbon block cartridges removes chlorine, silt, taste, odor and sediment. The use of antiscalant dosing minimizes the precipitation of sparingly soluble sulfate salts (Calcium and Barium Sulfate) and silica oxide. The double pass RO unit comes with a high pressure pump to boost the feed pressure, 5-micron cartridge filter to remove the last traces of suspended solids and reduce the feed water SDI to less than 3. The unit also comes eq uipped with an Advanced Allen Bradley PLC 14? color touch screen control panel, the control panel has an air condition due to the tropical severe weather condition. Electro-deionization removes ions from aqueous streams to achieve a water quality of 18.6 Mega Ohms then the product pump skid takes the product water from the EDI system to a product storage tank. The RO cleaning system is used to clean the membranes in three pressure vessels at a time.

PERFORMANCE

From a feed TDS of about 300 mg/L at temperature range of 27?C, the power plant produces 60gpm of ultra pure water at 18.6 Mega Ohms. Since the time of its start-up in March 2007, the plant has been running smoothly with minimal trouble-shooting.

Read More

INTRODUCTION In January 2007, Pure Aqua successfully supplied an industrial steel tank twin Water Softener Filter and filtration system in the Caribbean.

SYSTEM AND PROCESS Model MLF-42A is selected from our MF-1000 Series industrial media filters. 42"x60" epoxy coated steel tank automatic multimedia filter complete with 2" steel diaphragm valve, 100# operating and media. Model WS54-1500-2.5T is selected from our SF-100S Series steel tank water softeners. 54"x72" steel tank twin water softener complete with 50"x60" brine tank, 50 ft. resin, 2.5" pipe size, steel diaphragm control valves, cast iron face piping, 100# operating, inlet and outlet pressure gauges and sample valve on each unit.

PERFORMANCE From a feed water of about 300 mg/L hardness at a temperature range of 19C and 27C, the softening plant produces 150gpm of softened water with TH less than 2mg/L. Since the time of its start-up in January 2007, the plant has been running smoothly with minimal trouble-shooting. Read More

INTRODUCTION Pure Aqua successfully supplied a skid-mounted Industrial Brackish Water Reverse Osmosis (BWRO) system in 2007. The system produces 100gpm of product at 77°F using (20) 8"x40" Hydranautics ESPA1 membrane elements, (4) 5M FRP pressure vessels, SS multistage pump, microprocessor based controls and a digital conductivity and ORP read out, 460V/3ph/60Hz

SYSTEM AND PROCESS Feed water to the system is from beach-well with raw water TDS of about 1,000 PPM. The system design was based on high rejection TFC spiral wound membranes. The Brackish Water Reverse Osmosis system was selected from our RO-400 Series, model number TW-144K-4580.

PERFORMANCE From a feed TDS of about 1,000 mg/L at a temperature range of 19�C and 27�C, the BWRO skid produces 100gpm of drinking water with TDS less than 50mg/L. Since the time of its start-up in January 2007, the plant has been running smoothly with minimal trouble-shooting. Read More

INTRODUCTION In July 2008, Pure Aqua successfully supplied Industrial Brackish Water Reverse Osmosis (BWRO) system to produce 144,000 GPD of product at 77°F using (20) 8"x40" Hydranautics ESPA1 membrane elements, (4) 5M FRP pressure vessels, SS multistage Grundfos CRN pump, microprocessor based controls and a digital conductivity and ORP read out, 460V/3ph/60Hz.

SYSTEM AND PROCESS Pre-treatment of raw water includes antiscalant dosing to minimize the precipitation of sparingly soluble sulfate salts, sodium bisulfite (SBS) dosing to remove free chlorine in the feed water. The Brackish water Softener Systems Reverse Osmosis system was selected from our RO-400 Series. BWRO unit consists of 5-micron cartridge filters to reduce feed water Silt Density Index (SDI) and to limit the SS to 5-micron size.

PERFORMANCE From a feed TDS of about 1,000 mg/L at a temperature range of 19�C and 27�C, the BWRO skid produces 100gpm of drinking water with TDS less than 50mg/L. Read More