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Best way to clean concrete or limestone - YouTube

Dec 12, 2016· I show my eco-friendly super effective technique to getting scrapes oils stains and adhesive off limestone or cement! Skip navigation ... Removal of Marker Stain from Limestone …

Limestone for Sulfur Removal

Using limestone in scrubber systems can remove 95 percent of the sulfur, and lime (CaO) can remove 98 percent. General estimates are that to remove a ton of sulfur takes four tons of limestone and can result in 14 tons of waste material consisting largely of impure gypsum.

Calcium and Efflorescence Removal ... - Texas Stone Sealers

At Houston's Texas Stone Sealers, soda blasting is an effective technique we use (provided at an additional cost) to remove calcium and efflorescence deposits. Soda blasting has been used for years as a successful way to remove stubborn deposits, and …

How to remove Grease Stains from Limestone

Limestone happens to be of a porous nature, although it appears to be pretty solid. It is made of marine bone and shell fragments and because of its aesthetic beauty and durability; it is used in kitchen counter tops, floors, walls etc. Limestone has a sophisticated and …

How to Get a Stain Out of Limestone | eHow

Remove the stain from beneath the limestone surface with a homemade poultice. Place 1 cup of diatomaceous earth in a bowl. Create a paste-like substance by drizzling on water for oil stains, hydrogen peroxide for food or wine stains and ammonia for mold and mildew stains.

How to Remove Mildew Stains From Limestone | Hunker

Limestone is often used to accent patios, pools and bathrooms. These high-moisture areas leave limestone prone to developing mildew stains over time. Use of the wrong product could damage the stone. Never use acidic products that contain vinegar, ammonia or even citric acid to clean limestone.

How do you get stains out of limestone? | AnswersDrive

Cleaning limestone stains. Removing stains may require a poultice to draw the stain out of the stone. You can make a poultice by taking 3/4 cup of flour and adding little amounts of hydrogen peroxide until you have a paste. Apply the paste to the stain and allow it to dry, which may take as long as a day or two.

Eliminating Mildew From Limestone And ... - Written in Stone

Jun 13, 2016· Eliminating Mildew From Limestone And Cast Stone We've had a rainy few months here in the South and you know what that means: frizzy hair, less pool time, and mildew stains on our exterior stone. Of course these mildew and rain stains show up even more on lighter colored and porous stones such as limestone, travertine and cast stone.

Removal of Cu(II) from wastewater using doped HAP-coated ...

The Mg 2+ doped HAP-coated-limestone is easy to prepare in large scale, and the environmental risk of Mg 2+ doped HAP-coated-limestone itself can be ignored because it has showed environmentally friendly. Therefore, Mg 2+ doped HAP-coated-limestone exhibits potential as a new biocompatible adsorbent for the removal of Cu 2+ from wastewater.

How To: Remove stains from marble, travertine, limestone ...

How To: Remove stains from marble, travertine, limestone, granite & all other natural stones. Restore the Pristine Beauty of Marble, Travertine, Limestone & all other Natural Stones with Poultice Stain Removers. Many natural stones, from granite and marble to quartz and travertine, make great surfaces for floors and countertops.

Natural Stone Institute - Remove Stains from Stone ...

Allow the poultice to dry thoroughly, usually about 24 to 48 hours. The drying process is what pulls the stain out of the stone and into the poultice material. After about 24 hours, remove the plastic and allow the poultice to dry. Remove the poultice from the stain. …

How to Remove Paint From Limestone | Hunker

Jul 17, 2017· Limestone is a natural stone that is common in building materials. As such, you can find limestone in your kitchen or bathroom counters. Monuments and buildings are made of limestone also. Removing paint from limestone can be difficult because limestone is a relatively porous surface that will absorb chemicals easily.

Flue-gas desulfurization - Wikipedia

SO 2 is an acid gas, and, therefore, the typical sorbent slurries or other materials used to remove the SO 2 from the flue gases are alkaline. The reaction taking place in wet scrubbing using a CaCO 3 slurry produces calcium sulfite (CaSO 3) and may be expressed in the simplified dry form as: . CaCO 3 (s) + SO 2 (g) → CaSO 3 (s) + CO 2 (g). When wet scrubbing with a Ca(OH) 2 (hydrated lime ...

How to get rid of mold on limestone? | Somersoft

Nov 19, 2014· Hi folks, I've got a lot of mold on my limestone driveway and reconstituted limestone retaining walls, anyone know of a solution that kills the mold? A high pressure sprayer works on the driveway to a point but doesn't do anything on the retaining walls. The driveway has tiny black...

3 Ways to Clean a Limestone Fireplace - wikiHow

Mar 29, 2019· To clean a limestone fireplace, start by wiping it down with warm, soapy water using a microfiber cloth. Then, dip a separate cloth in clean water, and wipe down your fireplace again to remove any soapy residue. If there are stubborn stains, make a paste by mixing hydrogen peroxide and baking soda, and apply it to the stains with a cloth.

Stone Surfaces - How to Remove Water Spots: Tips and ...

Follow these steps to remove water spots from stone surfaces such as Alabaster, Bluestone Brick, Concrete, Flagstone, Granite, Limestone, Marble, Masonry Tile, Sandstone, Slate or Terrazzo: Wash the stain with a solution of washing soda or detergent (not soap) and water.

GCSE CHEMISTRY - Extraction of Iron in the Blast Furnace ...

Extraction of Metals. Extraction of Iron.. Chemistry of the blast furnace ().. Limestone is calcium carbonate (CaCO 3) and it is added to the blast furnace to remove the impurities in the iron ore. Calcium carbonate is decomposed by heat in the furnace to give calcium oxide and carbon dioxide. This is called thermal decomposition (see examples of other carbonates). ...

Use of limestone for SO2 removal from flue gas in the ...

Hydrated lime is normally used as SO 2 sorbent in spray dry scrubbers, whereas limestone is considered unreactive under conditions prevailing in such a system. However, limestone is more easily available and several times cheaper than hydrated lime. We tried to use limestone to remove SO 2 from flue gas in the semidry FGD process with a powder-particle spouted bed.

The Great Pyramid of Giza was once covered in highly ...

Sep 06, 2016· The Great Pyramid of Giza was once covered in highly polished white limestone, before it was removed to build mosques and fortresses Sep 6, 2016 Brad Smithfield Of all the Seven Wonders of the Ancient World, it is only the Great Pyramid of Giza that has survived the passing of time.

How to Remove Rust stains from limestone

Limestone has the capacity to absorb certain liquids and these liquids consequently can make limestone prone to rust if they happen to have run over certain metals before they reach the step. Rust stains acquired by limestone prove to be very difficult and stubborn to remove.

STONEDOCTORS QUESTION OF THE MONTH – REMOVING …

May 16, 2019· ADVICE ON HOW TO REMOVE RUST STAINS FROM STONE. Here is a common question we receive from our customers and site visitors each month. This piece is dedicated to one of our stone cleaning products that can be used to remove rust stains from your natural stone, tile, or brick.

3 Ways to Remove Limescale - wikiHow

Feb 08, 2020· To remove limescale from taps, start by soaking a rag in white vinegar. Then, wrap the rag around the tap you want to clean, and let it sit for about 1 hour. Finally, take the rag off and wipe down the tap with a clean cloth. If you want to remove limescale from a toilet, start by lowering the water level in the bowl and pouring in equal parts ...