Walnut Shell Filtration System

Walnut Shell Filtration System in Oil Field

Why needs the walnut shell filter?

Clean water is important to the oil and gas industry. As oil fields mature, their water cut steadily increases. After the separation process, the liquid will always contain some residue oil. 

Fats, oils and greases content of waste water can cause many problems in both sewers and waste treatment plants. If oil or grease is not removed before discharge of the waste. It can interfere with the biological life in the surface wasters and create unsightly floating matter and films.

The acute effects of oils on birds, fish and microorganism are reasonably well cataloged. The potentially more harmful is the subtle effect on other aquatic life.

The food industry seeks effective technologies to remove fats, oils and greases. Manufactures of oil containing foods face the problem of reducing the oil containment load to downstream waste water systems. 

A large amount of water is used in the refinery processes and a big fraction of it comes out as waste after getting polluted by oil which enters into the wastewater from leaks, spills etc., at various stages.

Walnut Shell Filter Applications

Walnut shell filters are frequently installed for the removal of oil and suspended solids from produced water, refinery effluent and waste / re-circulation streams found at other industrial applications. Walnut shell filtration system is developed as a more suitable method of filtering free oil and suspended solids in applications where sand filters have traditionally been used. Today, walnut shell filter is used to treat oil field produced water, refinery waste water, steel mill direct spray and caster water, ethylene plant quench water, copper concentrate decant and cooling water. 

In water and waste water applications, walnut shell filters are used to remove suspended solids and insoluble hydrocarbons from oily waste water, groundwater, plant process water, cooling water, water recycling & re-use, produced oilfield water and refinery waste water. In metalworking, power generation, municipal, chemical, and petrochemical applications, walnut shell filter treat and remove suspended solids, oily residues, ash, and metallic hydroxides from industrial liquids. Especially suited for filtering water used for oil field flooding, refinery disposal and off shore disposal. Also chemical agents are not needed during filtration.

But they are especially valuable in offshore drilling applications, because they are small and light enough to be installed on a ship due to the reduction in backwash water volume and reduction in weight and footprint. The walnut shell filter will play a big role in helping offshore rigs meet new and more stringent water quality regulations. Best of all, a special backwash cycle can safely remove the contaminants from the walnut shell filter media, allowing the walnuts to be used again and again.

Walnut shell is used for the filtration of water as environmentally safe and effective filtration media. Walnut shell is the best technology for the removal of oil and grease, as well as suspend solids from a variety of heavy oil and other oilfield produced water streams. Walnut shell is chemically inert, hard, resilient and perfect for oily water processing. Suggested mesh sizes are 6/10, 12/20, 35/60, 40/60.

Walnut Shell Working Principle in Filtration

Walnut Shell Filter Operating Principle

The walnut shell filter uses a deep bed of 100 percent walnut shells as the filtration media, which have excellent surface characteristics for coalescing and filtration, plus superior resilience to attrition. This deep bed of 100 percent walnut shells offer superior effluent quality, longer filtration runs, and greater throughput efficiency. The walnut shell filter removes about 98% of oil contaminants and suspended solids from a water stream.

The walnut shell filter uses raw process water and gas or air for back washing, eliminating the need for moving mechanical equipment or external scouring equipment. The walnut shell filter operates at twice the flux rate of conventional sand filters in the same application, and can remove over three times the amount of solids before needing to be cleaned.

Walnut Shell Deep Bed Filtration Media

Walnut Shell Filter Features

Walnut shells have a natural affinity for oil. The same English Black Walnuts that we routinely crack and eat can be ground up and used to safely and efficiently clean up contaminated water streams. 

Walnut shell filters are simple and reliable, compared to many filtration techniques designed to remove oil contaminants and suspended solids from water. There are no chemicals, very few moving parts and the walnut shell filter media can be used over and over again. Walnut shell filters can take water with up to 100 parts per million of contaminants and reduce this level to under 5 parts per million. This is cleaner than normal drinking water.

Couple this with the fact that walnut shell filters can be specifically designed for offshore use to remove more than 98 percent of the contaminants passing through it,

The following is the walnut shell filter advantages:

• Positive media cleanup  
• Elimination of compulsory chemicals  
• No requiring clean water 
• Simple, automatic design  
• Up to the minute, state of the art technology 
• No air or gas scour required 
• Upstream flow is not interrupted 
• High flow rates 

Walnut Shell Filter Backwash

Walnut Shell Filter Operation

During the filtration cycle, dirty process water passes through the walnut shell filter from top to bottom. As the water passes through the walnut shell media, free oil and suspended solids are removed. After 24 hours of filtration, the dirty process water is redirected and pulsed into the bottom of the vessel to fluidize the media bed. In addition, air or process gas is added in a proprietary manner to create an airlift pump.

The airlift pump lifts the contaminated media to the top of the vessel where the turbulence of the backwash water and gas separates oil and suspended solids from the walnut shells. The use of air or gas greatly reduces the amount of backwash water required. The mixture of air or gas and backwash water is separated in an external vessel. One separator vessel can be used for multiple walnut shell filters. Upon completion of the backwash cycle, the flow of dirty process water is again returned to the top of the vessel. It utilizes unfiltered water for media cleanup, eliminating the need for high volumes of clean water.

Since our founding in 1981, for over 30 years, Flowspec Industrial Limited has been an industry leader in manufacturing and distributing the renewable, organic, recycled and sustainable walnut shells. Welcome to visit our website www.walnutshellpowder.com and contact us at flowspec@outlook.com 

Walnut Shell Blasting Applications

Walnut Shell Blasting Media

WALNUT SHELL BLASTING MEDIA

Walnut shell blasting media is a hard and fibrous product made from crushed walnut shells in accordance with International Trade Standard. The walnut shell blasting medium is ground to various sizes from coarse to extra fine depending the application, allowing for a fine degree of control over the desired finish. Walnut shell is used as an abrasive blast media similar to sand for cleaning, but without the negativities associated with other abrasive materials. Because walnut shell blasting is a gentle, non-corrosive environmentally friendly method of removing foreign matter, coatings, paint, dirt, grime, mold and smoke residue from almost any surface including metal, wood, aluminum, brass, stone, glass, fiberglass, plastic, masonry and tile without scratching, etching, pitting the substrate material / underlying surface or marring cleaned areas. When used as a blasting media, walnut shell grit is extremely durable, angular and multi-faceted, yet is considered a 'soft abrasive'. Walnut shell blasting media is also great for rust free paint removal from sheet metal and for cleaning engines, steam turbines and transmissions. Walnut shell blasting grit is an excellent replacement for sand (free silica) to avoid inhalation health concerns.

Walnut Shell Blast Abrasive

Additionally, walnut shell abrasive media can be used for removing anti-fouling bottom paint from boats, paint from cars and trucks, graffiti from buildings, mold remediation and fire/smoke restoration, and removing baked on carbon deposits from ferrous metals are also capabilities. Walnut shell blasting media can be used for polishing, deburring, deflashing metal finishing as well as paint and coating with minimal effect on the surface being blasted are also fantastic features.

Walnut Shell Blasting Medium

Walnut shell abrasive media is used in both tumbling and vibratory applications for polishing gems and jewelry. Walnut shell abrasive media also works as a de-burring and de-flashing product for molding, casting and electrical parts.

Like other soft media, Walnut shell cleans and removes matter from surfaces without damaging underlying material.

Suggested mesh sizes are 4/6, 6/10, 8/12, 12/20, 14/30, 18/40, 35/60, 40/100, 60/200, #100, #200

Walnut Shell Abrasive Media

WALNUT SHELL BLASTING ADVANTAGES

-Premium soft abrasive available in black & English walnut shell grades
-Preserves base, primer & gel-coats while removing top coats of paint
-Environmentally friendly, natural, non-toxic; causes no health or environmental hazards
-Long-lasting, re-usable and biodegradable
-Reduces cycle time of finishing operations; preserves microfinishes
-Walnut shell sandblasting for selective coatings removal
-Replaces sand and silica blasting media to avoid problem of silicosis
-Does not produce dust, safe for indoor use
-Angular and multi-faceted, not require flammable solvents
-Blasted surfaces require no drying time
-Cleans precisely without a change in dimensions
-Cleaned parts require no additional machining
-The cycle time of finishing operations is drastically reduced
-Fulfills government cleaning requirements.
-The media can be re-used infinitely, cost effective

Walnut Shell Blasting Grit

TECHNICAL DATA   MSDS 

APPLICATIONS	Paint Stripping, Coatings Removal, Blast Cleaning, Deburring, Deflashing
	Tumbling, Engine Clean-Out, Porosity Enhancer for Grinding Wheels, Ceramics

USED ON	Airplanes, Cars, Trucks, Trains, Boats, Landing Gear, Buildings, Brick, Statues,
	Monuments, Engines, Jewelry, Molds, Watch, Motors, Electronics,  Brass, Aluminium

INDUSTRIES	Automotive Restoration, Aircraft Maintenance, Paint and Coatings, Military,
	Electronics, Jewelry Polishing, Molds Polishing, Plastic, Alloy Die Castings

WALNUT SHELL GRIT SIZES	4/6 6/10 8/12 12/20 18/40 35/60 40/100 60/200
WALNUT SHELL FLOUR SIZES	#100   #200

PACKAGING

25kgs Woven plastic bags, Paper Bags, 40Bags/Pallet

Walnut Shell Blast Media

WALNUT SHELL BLASTING APPLICATIONS

-Ground walnut shell blast media for paint stripping & coatings removal
-Crushed walnut shell grit for deflashing, deburring & finishing operations
-Effective on boats, buildings, bridges, outdoor statuaries, cars and graffiti removal
-Blast cleaning for aircraft engine cleanout, automotive parts, steam turbines and transmissions
-Deflashing parts in electronics industries
-Deburring in plastics and aluminum & zinc die casting industries
-Excellent media for wheel blasting, air blasting and tumbling operations
-Porosity enhancer for ceramics and grinding wheels in burn-out applications
-Removing graffiti
-Architectural cleaning and restoration of steel, wood, brick or concrete
-Polishing and cleaning of fine metals, glass, fiberglass, plastic, stone and alloys
-Jewelry and watch polishing

Since our founding in 1981, for over 30 years, Flowspec Industrial Limited has been an industry leader in manufacturing and distributing the renewable, organic, recycled and sustainable walnut shells. Welcome to visit our website www.walnutshellpowder.com and contact us at flowspec@outlook.com 

Walnut Shell Exfoliating Creams and Scrubs

Walnut Shell Scrub

Crushed walnut shell is a hard fibrous material ideal as an abrasive. Walnut grit is extremely durable – in fact larger particles sizes are used as abrasives in engineering and stone polishing plants.

The larger particle sizes are not recommended for the face as they can break down delicate skin around the eye area. Nonetheless walnuts can be used effectively in natural facial exfoliants when crushed to a fine powder.

The angular and multi-faceted minute particles of walnut shell powder retain the extreme hardness of the walnut shell – yet because of their fine particle size – they will act as a soft abrasive in a cream or lotion. The fine walnut shell powder which is insoluble in water is ideal for use in a natural facial exfoliant or scrub where a polishing or refining action is required.

Walnut Shell Exfoliating Creams and Scrubs

For body applications, walnut shells are ground to fine particles, and sterilized before packing. They come as light brown particles which are clearly visible in a cream and ideal as a superb body exfoliant. Walnut shells are extremely hard and do not break down in the product. Their hardness makes them a highly effective natural body scrub coping very efficiently with even thick deposits of dead surface skin.

Walnut Shell Body Scrubs

Exfoliating creams and scrubs help remove dead cells from the surface layers of the skin and porepare the skin to take moisturisation and anti-ageing treatments. Exfoliating is also an instantly rewarding activity – unlike much skin care the consumer doesn’t have to wait to see the results.

Regular exfoliation can almost instantly help skin feel softer, smoother, more moisturized, more even in skin tone, and appear brighter and healthier. Not only that but results get better as exfoliation is built into a regular skin care routine at least once or twice a week.

As levels of consumer understanding about the benefits of exfoliation have risen so demand for exfoliating products has increased – throughout the year and in all climates.

In the summer months exfoliation is essential as winter skin is suddenly exposed and consumers want to slough off blemishes or prepare their skin for self-tanning applications. In winter exfoliating is the first step in deep moisturisation of the skin to protect it from the extremes of centrally heated interiors and cold weather.

Walnut Shell Body Polisher and Cleanser

Since our founding in 1981, for over 30 years, Flowspec Industrial Limited has been an industry leader in manufacturing and distributing the renewable, organic, recycled and sustainable walnut shells. Welcome to visit our website www.walnutshellpowder.com and contact us at flowspec@outlook.com 

Cosmetic Grade Walnut Shell Powder

Walnut Shell Exfoliation Scrubs

Introduction

Cosmetic grade walnut shell grits, powders and flours are premium ingredients used in fine cosmetics products internationally of exfoliating products, shower Gel, bar soap and cleansing products as non-animal origin, skincare additive cosmetics and toiletries. Cosmetic grade walnut shells are widely applicable in cosmetics, skin care, exfoliation, creams and soaps with shell mesh sizes of 18/40, 35/60, 40/100, 60/200 and flour mesh sizes of #100, #200, #325 and #400. Our premier crushed walnut shells are available for manufacturing high quality facial scrubs, exfoliants, soaps and creams. And also, we can serve our customers with sterilization, custom grades and custom packaging. 

Walnut shell powder (INCI name: Juglans regia) is compatible with most materials used in cosmetics and pharmaceutical preparations. The level of use of the walnut shell powder will depend on the formulation. Typical addition levels are around 2%.

The cosmetic and personal care industry use crushed walnut shell media as an exfoliate in facial, body and foot scrubs. Crushed walnut shell is a hard fibrous material ideal as abrasive. Crushed walnut shell grit is extremely durable, angular & multi-faceted, yet considered a soft abrasive. Cosmetic grade walnut shell is prepared by controlled grinding of the shells of walnuts into very fine particle sizes, acting as a soft abrasive in cosmetics products, skin care, exfoliation, creams, bar soaps, exfoliating products, shower Gel, and cleansing products. 

More aggressive formulations will use particle sizes as large as 20-40 mesh. The soft abrasive nature of walnut shell is still viable in flour sizes at 200 mesh and smaller for sensitive, fine scrubs.

Cosmetics Walnut Shells Skin Care

Cosmetic grade walnut shell advantages

Cosmetic grade walnut shell is soft abrasive compatible with anionic, non-ionic and cationic surfactants. The cosmetic grade of walnut shell is either natural and has rounded edges (relative to an abrasive blasting grade) for a smoother feel.

Cosmetic Grade Walnut Shell Powder

What’s the cosmetic grade walnut shell applications?

Walnut shells can be used in a wide range of natural skin care applications – facial scrubs, skin cleansers, body polish, peeling creams and lotions, body exfoliants – giving an unusual twist to a familiar natural product.

When skin is rough, get buffed! The cosmetic grade walnut shell works into a gentle lather, releasing skin-smoothing natural walnut shells. Cosmetics walnut shells work over your entire body - even the toughest, driest skin spots will be scrubbed away to reveal newer, softer skin. Delight in the fragrance of toasted nuts while achieving soft, smooth skin that's always in season.

Since our founding in 1981, for over 30 years, Flowspec Industrial Limited has been an industry leader in manufacturing and distributing the renewable, organic, recycled and sustainable walnut shells. Welcome to visit our website www.walnutshellpowder.com and contact us at flowspec@outlook.com 

Walnut Shell Cat Litter

Ground English Walnut Shells

Ground English walnut shell grits are widely used as pet litters for reptiles, cats, lizards, bearded dragons, monitors, skinks & uromastyx, snakes and birds with mesh sizes of 18/40, 35/60, 40/100.
Crushed walnut shell grit is increasingly popular as an ingredient in cat litters because it does not absorb moisture, minimizes bacteria and mold, and is bio-degradable & environmentally friendly.  



Walnut Shell Pet Bird Litter

Walnut shell cat litter applications
Walnut shell pet litter can be a great bedding in any cage as it can be strained for quick cleaning. Plus, the walnut shell pet litter can stay in the cage and not scatter when birds flap wings.
Walnut shell pet litter can be a functional solution to keep the cage clean and to provide a clean environment to birds with easy cleaning daily. However, avoid direct contact to prevent potential indigestion.
Crushed walnut shell cat litter contains natural crushed walnut shells that don't stick or cling to promote easy cleanup. You can simple make a non-contact bedding in the cage and clean between regular intervals.

Walnut Shell Pet Bedding



Crushed walnut shell grit advantages as pet bedding
1. 100% natural ground English walnut shell, safe without toxic, ground to a uniform size
2. Lighter in weight than regular sands
3. Dust free for a healthier pet home environment
4. Will not scratch the pet cage glass
5. Substrate is renowned for its excellent heat conduct ability
6. Loose nature stimulates pet’s natural digging and burrowing behavior in their home
7. Can be readily composted with everyday yard waste, removed daily
8. Recreate your pet's natural desert habitat with this excellent bedding

Notes: Due to possible health concerns from potential bird ingestion, walnut litter should not come in direct contact with birds. It is recommended to be used as a non-contact bedding, using only in cages with grate separating litter from birds.

Walnut Shell Cat Litter

Since our founding in 1981, for over 30 years, Flowspec Industrial Limited has been an industry leader in manufacturing and distributing the renewable, organic, recycled and sustainable walnut shells. Welcome to visit our website www.walnutshellpowder.com and contact us at flowspec@outlook.com 

Walnut Shell Fillers

Flowspec produced ground walnut shell grits and flours are produced for the adhesives, construction, resin, plywood, laminated veneer lumber, furniture, rubber, paint and cosmetics industries. According to specific needs, we will produce the proper mesh sizes of walnut shell for you. For non-skid & anti-slip applications, ground walnut shell is an excellent paint additive for stairs, floors, pools, decks and ramps.  In plastics and rubber compound manufacturing, walnut shell flour is a preferred additive.  In burn-out applications, walnut shell is used to create porosity in ceramics.

What applications when the walnut shell is used as walnut shell fillers? The walnut shells can be used in applications of non-skid, anti-slip, painting, coatings, burn-out and filtration as walnut shell fillers.


The walnut shell fillers will be used in industries of painting, coatings, plastic & rubber compounding, oil drilling and ceramics manufacturing.

If you have any questions or need on the walnut shell fillers, please contact us at flowspec@outlook.com or add our skype of flowspec

Walnut Shell Blasting

Large Grade Walnut Shell Blasting Media

Crushed walnut shell blasting media is an eco-friendly, environmentally-safe soft abrasive grit used in media blasting, blast cleaning, paint stripping, coatings removal, deflashing, deburring, tumbling and filtration applications. 

Middle Grade Walnut Shell Blast Media

Walnut shell blasting applications

1. Ground walnut shell blast media for paint stripping & coatings removal
2. Crushed walnut shell grit for deflashing, deburring & finishing operations
3. Effective on boats, buildings, bridges, outdoor statuaries, cars and graffiti removal
4. Blast cleaning for aircraft engine cleanout & steam turbines
5. Deflashing parts in electronics industries
6. Deburring in plastics and aluminum & zinc die casting industries
7. Excellent media for wheel blasting, air blasting and tumbling operations
8. Porosity enhancer for ceramics and grinding wheels in burn-out applications

Fine Grade Walnut Shell Sandblasting

Walnut shell blasting advantages

1. Premium soft abrasive available in black & English walnut shell grades
2. Preserves base, primer & gel-coats while removing top coats of paint
3. Environmentally friendly, non-toxic; causes no health or environmental hazards
4. Long-lasting, re-usable and biodegradable
5. Reduces cycle time of finishing operations; preserves micro-finishes
6. Walnut shell sandblasting for selective coatings removal
7. Replaces sand to avoid problem of silicosis

Since our founding in 1981, for over 30 years, Flowspec Industrial Limited has been an industry leader in manufacturing and distributing the renewable, organic, recycled and sustainable walnut shells. Welcome to visit our website www.walnutshellpowder.com and contact us at flowspec@outlook.com 

Walnut Shell Filter and Applications

Walnut Shell Filter

Walnut shell filter is one type of separation equipment which adopts filtration separation principle. Walnut shell filter adopts the walnut shells as its filtering mediums, because the walnut shells has the features of hydrophilic but not oleophylic, and when the walnut shells are broken up into small sizes, it increases the superficial area of walnut shells greatly, and even more the walnut shells has excellent absorbability, as a result the walnut shells has high oil removal rates. The walnut shell filter has two control ways, automatic and manual. The oily waste water flows into the walnut shell filter from up to down, through water distributor, walnut shell filter material layer and water collector, the filtering finishes. When backwashing or back flushing, the stirrer overturns the walnut shell filter materials, the water flows from down to up, making the walnut shell filter materials be washed fully, and the walnut shell filters materials can be used again. 

Walnut shell filter applications 

1. Oily waste water treatment in oil filed, petrochemical, metallurgy industry

2. Oily waste water treatment in seaport, quay, oil depot

3. Oily waste water treatment in ships or vessels

4. Oily waste water treatment in steel industry, metallurgy industry, coal industry

5. Oily waste water recycling system in steel industry, metallurgy industry, coal industry

6. Water fine filtering in oil field and offshore oil drilling platform

For more information, please visit http://www.walnutshellpowder.com and feel free to contact us at email of flowspec@outlook.com 

Walnut shell filter materials and walnut shell grinding materials

Walnut shell can be used as two main materials, filter materials and grinding materials.

• When walnut shell is used as filter materials, the walnut shell is mainly put into the walnut shell filter equipments, when the fluids go through the walnut shell filter from the equipment suction to discharge, the impurities are attached onto the walnut shells, achieving the filtering purpose. Walnut shell filter materials are mostly used in the oil filed, to remove the oil dirt of oily water. In the processing of walnut shell filter materials, it is simplier relatively. Just needing breaking up the walnut shells into small mesh sizes, and removing the other impurities from the walnut shells. Normally, the walnut shell filter materials are big mesh sized of 6# - 35#.
• When walnut shell is used as grinding materials, or abrasive materials, its processing is more complicated that it requires the surfaces must be smooth without any corner, otherwise the walnut shell will damage the surfaces of other objects when used as grinding materials. For example, when the walnut shell is put into spay gun as grinding materials to polish other objects, the walnut shell will damage the surfaces of other objects if the walnut shell has corners itself. And the grinding materials have wider range of mesh sizes, which include all of the mesh sizes from 4# to 200#.

If you need more information, welcome to visit our website www.walnutshellpowder.com and feel free to contact us @ flowspec@outlook.com 
Skype: flowspec