Harn R/O Systems Blog

RECOVERY RATE

Recovery is the amount of water permeated per unit time - usually in gallons per minute (gpm) and expressed as a percentage of the raw water feed flow rate. The design recovery is calculated as follows:

Topics: membrane filtration, membrane treatment system, membrane treatment, water treatment, membrane plants, water quality, ro calculations

Water is one of the most important commodities that supports life on earth but very few understand how hard it is to get clean, potable freshwater. Water, in all its forms, covers three quarters of the Earth's surface. The water levels on Earth remain relatively the same each year. Every day, water goes through a cycle that sees it flow from land, to the seas and then evaporates into the atmosphere through the processes of evaporation and precipitation.

Topics: membrane filtration, membrane treatment system, reverse osmosis, membrane treatment, water treatment, clean drinking water, membrane plants, water recycling, water quality, water purification process, save water

In conventional construction projects there are three main parties: the water treatment plant owner, the engineer, and the contractor. In specialized process projects a system supplier with particular expertise on the process is also usually involved. This party is also called an Original Equipment Manufacturer (OEM). For membrane treatment projects this entity is commonly called the Reverse Osmosis Equipment Manufacturer (ROEM) or the Membrane System Supplier (MSS). The ROEM or MSS may have a separate contract with the water treatment plant owner, or they may be a subcontractor to either the engineer or the main general contractor.

Topics: membrane treatment system, reverse osmosis

Variable frequency drives (VFD) are becoming the popular choice for many industrial processes that need to make use of motors with changing speeds. In membrane plants, these motors are used to feed the pressure and flow of the water as it moves through the various areas of the treatment cycle.

Topics: membrane filtration, membrane treatment system, membrane treatment, water treatment, membrane plants, vfd, water purification process, save money, water treatment plant

Water quality and purification processes have improved over time, while demand for drinkable water has increased. Today’s membrane treatment plants can be tailored to the overall composition of water to be processed, and the membrane treatment methods used can reduce more possible contaminants. Where the desired outcome is stable, clean water with an appreciable return on the investment, upgrading to a membrane water treatment system is backed by cutting edge industry science.

Topics: membrane treatment system, water treatment, water quality, water purification process

Membrane Installation Components

Membranes are loaded from the feed end of the pressure vessel. To better understand the installation procedure, the following definitions are helpful:

Topics: membrane treatment system, membrane treatment, water treatment, water quality