Technical Resources

>

Technical Resources

Below you will find several resources pertaining to Nanostone’s ceramic ultrafiltration membrane.
Requests for engineering and other resources can be made by clicking here.

White Papers


Ceramic Ultrafiltration Membranes with Improved Economics, Operability, and Process Design Flexibility

The production of safe drinking water requires suitable water supplies and purification processes to adequately provide safe drinking water in compliance with drinking water standards. The m...

Read White Paper

Hydraulic Cleaning Methods for Ceramic Membranes

Ceramic membranes continue to make improvements in surface area and production costs which are making them cost competitive with polymeric membranes. The system designs employed by many ceramic ...

Read White Paper

Nanostone Membrane Matters 151 - Ceramic Monolith Pilot - Validating Robustness

Nanostone Water has developed a high density ceramic UF monolith module for a broad range of industrial water treatment applications. The internal development activities have been supported by ...

Read White Paper

Nanostone Membrane Matters 152 - Ceramic UF and Cooling Tower Blowdown Recovery

A power plant in the southwest region of the USA has been increasingly challenged with water scarcity issues reflected by higher water cost and increasing use restrictions. Cooling towers typica...

Read White Paper

Nanostone Membrane Matters 153 - Ceramics Demonstrate Reversible Polymer Fouling

Ceramic membranes are widely recognized to be more robust than polymeric membranes. Chemical resistance, temperature stability, mechanical strength and the inherently higher flux rates of ce...

Read White Paper

Nanostone Membrane Matters 154 - Nanostone CM-151* - Pretreat Less and Recover More

Ceramic membranes are widely recognized to be more robust than polymeric membranes. Chemical resistance, temperature stability, mechanical strength and the inherently higher flux rates of ce...

Read White Paper

Nanostone Membrane Matters 155 - The Benefits of a Wider TMP and Temperature Operating Ranges

Polymeric hollow fiber Ultrafiltration / Microfiltration (UF/MF) membranes have been used in mainstream water and waste water treatment systems for several decades. The early versions were subme...

Read White Paper

Silica Reduction in Cooling Tower Blow-down Reuse Using Low Cost Ceramic Ultrafiltration Membranes

In an effort to conserve water, a major power plant in the southwest USA built a cooling tower water blowdown (CTBD) treatment system consisting of electrocoagulation (EC), ultrafiltration (...

Read White Paper

Certifications


Videos


Case Studies


A Membrane System Retrofit -Rapid Valley Sanitary District

In 2017, the Rapid Valley Sanitary District was not able to reach its goal to deliver three million gallons per day (3 MGD) of drinking water to the community. The root cause was the unreliable and insufficient capacity from the existing polymeric microfiltration systems, which included a system for treatment of backwash from the three other skids. Above and beyond the capacity challenge in the winter, where near-freezing feedwater caused shrinkage in the polymeric membranes, the systems were subject to frequent fiber breakage and irreversible fouling. This problem was particularly exacerbated when the plant experienced turbidity spikes on incoming water quality as high as 15 NTU. Additionally, the constant fiber breakage issue required manual maintenance, creating an untenable situation for the operators. With the number of shutdowns for cleaning and maintenance, in addition to erratic feed water quality fluctuations, increasing along with the corresponding costs of chemicals and labor, the Rapid Valley Sanitary District knew they needed to replace rather than repair – but they didn’t want to replace PUF systems only to have the same problem in the future.

Read Case Study

A More Compact, Reliable and Robust UF solution for Xiaojihan Coal Mine

To meet the new Zero-Liquid Discharge (ZLD) regulations governing wastewater treatment, the Xiaojihan Coal Mine, a member of the China Huadian Group, had to expand the capacity of its wastewater management system.
The mine faced a number of issues with its existing wastewater treatment process, a submerged polymeric ultrafiltration (PUF) membrane system. As is often the case with PUF systems as they age, fouling had become a frequent issue, and the need to perform Clean-In-Place (CIP) had increased to multiple times a week. That, combined with frequent fiber breakage in the PUF membrane and subsequent failure of their downstream RO membrane, resulted in a treatment capacity that was below the plant requirements.

Read Case Study

Chemical Refinery Waste Water Reuse

A chemical refinery located in Qinghai China operated a non-biological waste water treatment plant with chemical precipitation followed by clarification, conventional media filtration, and finally with reverse osmosis (RO).

Read Case Study

Coal to Chemical Waste Water Reuse

Refining coal to other materials is known as CTX, and is a large industry in China. Waste water from the CTX process is difficult to treat industrial waste water. Regular biological treatment is not enough to meet discharge requirements and so the facilities must find ways to reuse this water prior a zero liquid discharge system. Ultrafiltration and RO are the technologies of choice in this application to enable water reuse. A ceramic UF membrane is a promising upgrade for those looking for a more robust UF choice for this type of waste water treatment.

Read Case Study

Cold Source Water for Industrial Makeup

Industrial companies require clean water for cooling, boiler makeup, and a variety of manufacturing processes. It is common to use ultrafiltration or microfiltration (UF/MF) membranes to treat the incoming water supply to reduce turbidity and suspended solids of industrial process water directly, or in use as pretreatment to protect the performance of Reverse Osmosis (RO) membranes.

Read Case Study

Power Plant Boiler Feed Water Makeup

Around the world, end users who have had a poor experience with PUF membranes are looking for more robust alternatives for their boiler feed water makeup system. The Nanostone CM-151 CUF membrane has a similar process design to PUF and can directly replace PUF modules with minimal changes to the rest of the system.

Read Case Study