Chemtrade Logistics Inc. – Ferric Sulfate

In water and wastewater treatment operations, ferric salts are used as coagulants or flocculants for water clarification, odor control to minimize hydrogen sulfide release, for phosphorus removal, and as a sludge thickening, conditioning and dewatering agent. DESCRIPTION. Liquid Ferric Sulfate is a red-brown aqueous...

Use of ferric sulphate in wastewater treatment from chicken ...

Apr 1, 2013 ... We have noted that sludge coming from a physical/chemical treatment process where ferric sulphate is used requires only one cationic polymer to improve the dewatering characteristics, whereas in processes where other coagulants are used it normally requires three or more chemicals for dewatering the...

Altivia - Ferric Sulfate Solution

Ferric Sulfate is used as a coagulant or flocculant in water and wastewater treatment. ALTIVIA produces a variety of Ferric Sulfate strengths each with differing soluble iron percentages. Requested strengths vary depending on the water source that is being treated. ALTIVIA's Ferric Sulfate is NSF approved and meets all...

SLUDGE DEWATERING

This Sludge Dewatering handbook will present the key parameters to take into account in order to optimi- ..... Iron salts: Ferric Chloride and Iron Chloro-Sulfate are mainly used in conjunction with lime to condi- tion the sludge before a filter press. They allow a better filterability by coagulating the colloids (thus lowering the...

Polymers: Precipitation and Dewatering - Tramfloc, Inc.

Polymers: Precipitants, coagulants and flocculants are used in waste treatment to separate unwanted components from water and sludge and help dewatering. ... Ferric Sulfate [Fe2(SO4)3] – Applications include water clarification, decolorization of surface water, sludge conditioning and dewatering, trace metals removal,...

Dry ferric sulfate Kemira Ferric Sulfates

Kemira Dry Ferric Sulfate (KEMIRA FERIX) is a high purity granulated ferric sulfate product. The iron content is 19-21% as ferric iron. The product is soluble in water to a concentration of approx. 10% Fe-solution (approx. 36% Fe2(SO4)3). It is an effective primary coagulant that performs superbly in both drinking water and...

Ferric Chloride & Ferric Sulfate Water Treatment | Pencco, Inc.

Benefits of Ferric Sulfate and Ferric Chloride in Water Treatment. Up to 40% more TOC when compared to aluminum chemistries; A wider pH range for the coagulant to work in; Rapid floc formation requiring less residence time in the basins; Improved sludge dewatering vs. aluminum; Reduced odors in the sludge that is...

Liquid Ferric Sulfate Product Data Sheet - Water Guard Inc.

Ferric Sulfate is very effective as a coagulant in oily water clarification. It is excellent for turbidity control, as well as the removal of phosphorus, color, and suspended solids. Ferric Sulfate is widely used for sludge dewatering, as well, resulting in volume reduction. It is very effective at removing metals, especially arsenic.

Dewatering of sludge

or similar treatment on primary sludge and finding the factors affecting the dewaterability. The literature suggested two different mechanisms, Fenton's oxidation and coagulation with iron salt, and the effect of both were considered in this investigation. Experiments on the activated sludge were conducted first and used as a.

Coagulation and Flocculation in Water and Wastewater Treatment ...

The commonly used metal coagulants fall into two general categories: those based on aluminum and those based on iron. The aluminum coagulants include aluminum sulfate, aluminum chloride and sodium aluminate. The iron coagulants include ferric sulfate, ferrous sulfate, ferric chloride and ferric chloride sulfate.

5-09 Ferric, Alum or Llime - Environmental Leverage

May 7, 2009 ... are used in plants and how they can impact your process? Many plants add Alum, lime, or iron salts to the wastewater to remove phosphorus .... with the alum sulfates but will have varying degrees of solubility up to 2000 ppm so you may not see it as sludge. The lime combines with the chlorides to form a.

Activated Sludge Process

Sludge conditioning is a process whereby sludge solids are treated with chemicals or various other means to prepare the sludge for dewatering processes. ... Many chemicals have been used such as sulfuric acid, alum, chlorinated copperas, ferrous sulfate, and ferric chloride with or without lime, and others. The local cost...

ULTRION®

ULTRION can be used by anyone currently using alum, ferric chloride, ferric sulfate, aluminum chloride, or any other inorganic coagulant used for water and wastewater clarification. ULTRION can also be used to replace an inorganic salt and organic polymer program. Where can ULTRION be used? ULTRION can be used...

Evaluation of chemical coagulation–flocculation aids for the removal ...

Numerous substances have been used as coagulant and flocculation aids, including alum [Al2(SO4)3·18H2O], ferric chloride [FeCl3·6H2O], ferric sulfate ... Several of the problems with chemical precipitation are that the volume of sludge is increased and the resulting sludge may have poor settling and dewatering...

technology>based control requirements for water ... - DEP eLibrary

chloride and ferric sulfate are also used. 362>2183>003 ... used to aid filtration or enhance filter backwash water sludge settling. The solids .... drying of the sludge. Occasionally, some type of mechanical dewatering device (i.e. centrifugation, filtration, etc.) may be used. Facilities using tube or plate settlers may require the...

A strategy for controlling deposition of struvite in municipal ... - NCBI

... the dewatered sludge cake, and (2) to remove phosphate from centrate or filtrate. Chemicals used include magnesium hydroxide [Mg(OH)2], both of reagent grade and reclaimed from a flue gas desulfurization system, magnesium chloride (MgCl2), calcium hydroxide [Ca(OH)2], ferric chloride (FeCl3) and aluminum sulfate...

manual for testing of water and wastewater treatment chemicals

coagulant aids and for sludge dewatering; lime and soda ash allow for pH correction ..... 4.3.2 ALTERNATIVE SLUDGE DEWATERING TEST PROCEDURE. 111 ..... FERRIC SULPHATE. Ferric sulphate is normally not cost competitive for water treatment, but its use is known. It has been used in wastewater treatment in this...

Workshop on Problems Around Sludge Part I - European Commission

Lime is a readily available alkali, which is widely used in sewage treatment. ... dewatering. No significant difference has been observed between the effect of hydrated lime and quicklime when treating sludge with high water content, as is the ... cases in combination with addition of ferrous sulphate or ferric chloride), ii) pH.

Sludge Bags or Geotextile Tubes to Dewater Sludge | NC State ...

Mar 2, 2017 ... Sludge Bags or Geotextile Tubes to Dewater Sludge. — Written By ... The bags are used as an alternative method to traditional pump and haul to remove sludge in a lagoon. The bags are ... There are several polymer types to choose from (examples are aluminum sulfate, ferric sulfate, food grade polymers).

Lime Softening - Carmeuse Lime & Stone

Lime softening is often used to reduce the hardness of water and sometimes to enhance clarification prior to filtration. ... The coagulant could be iron based (ferric sulfate, ferrous sulfate) or aluminum based ... A low magnesium hydroxide content sludge can be dewatered to 60% solids, but a high magnesium hydroxide...

We Dewater Water Plants Too - Part Two Alum Sludge

Oct 26, 2015 ... The Seneca water plant uses aluminum sulfate as a coagulant. The waste is dewatered with the Schwing Bioset FSP 503 screw press.

Recovery and Reuse of Coagulants from Treatment of ... - VTechWorks

Coagulants used in many water treatment processes are increasing in cost and .... nitrate and aluminum sulfate as a function of pH and the age of aqueous solutions. .... concentration and volume of the sludge sample used. The dewatering characteristics of ferric sludges are normally superior to those of alum sludges. (Ref.

Ferric and Aluminium Salts - water tech - enviro tech - product - AXinhai

Already in the digester insoluble iron sulphide is produced. It is disposed with sewage sludge. By the use of iron‐containing precipitating agents, such as AluStar®CL, usually no further desulfurization is needed. In recent years, AluStar®CL was increasingly used in sludge dewatering. In combination with AXinhai specialty...

Conventional Clarification | GE Water

Also, the iron and aluminum hydroxide flocs increase volume requirements for the disposal of settled sludge. With aluminum sulfate, optimum coagulation efficiency and minimum floc solubility normally occur at pH 6.0 to 7.0. Iron coagulants can be used successfully over the much broader pH range of 5.0 to 11.0. If ferrous...

Valmet wastewater solutions save energy and chemicals

Tampere Water recently installed several Valmet total solids measurements and a sludge dewatering control package at the Viinikanlahti wastewater treatment ... The biological and chemical wastewater treatment in Viinikanlahti is based on an activated sludge process coupled with phosphorus precipitation by ferric sulfate.

effect of aluminum and iron on odors, digestion efficiency, and ...

information concerning the impact of iron in raw sludge on odor generation, dewatering properties and ... content in raw sludges should routinely be measured and field data used to further evaluated the role of iron and ...... In addition, the free sulfate and sulfonate-based surfactants present in wastewaters contribute to...

Alum and Ferric Chloride: Pros, Cons, and Substitutes for Treating ...

Oct 18, 2017 ... Alum and ferric chloride are two widely-used “commodity chemical” coagulants that have been around for a long time. ... It produces a lot of sludge. Plus, the sludge it ... Substitutes include other aluminum and iron salts, like sodium aluminate and ferric sulfate, but these may or may not work. Proprietary...

DUAL-CHEMICAL CONDITIONING FOR DEWATERING ...

polymer, to condition its anerobically digezsted wastewater sludge. ... measurements could not be reliably used to predict dewaterability. Sludge conditioning experiments done using different combinations of optimal dosages of femc ... optimum dosage of ferric chloride without adwersely affecting the dewatering efficiency.

A Strategy for Controlling Deposition of Struvite in Municipal ... - jstor

addition of an iron salt to the wastewater or to the digested sludge for the precipitation of phosphorus as vivianite (Fe3(P04)2.8H20). (Marnais et al, 1994). Iron salts (ferric chloride [FeCl3] or ferric sulfate [Fe2(S04)3]) are also used together with polymers to improve sludge dewatering performance. However, this practice has.

Evaluation of Dewatering Performance and Fractal Characteristics of ...

Jun 29, 2015 ... As described in detail previously [21–22], a program-controlled Jar-test apparatus (ZR4-6 Jar Tester, Zhongrun Water Industry Technology Development Co., Ltd., China) was used for sludge dewatering experiments. The dewaterabilities of the sludge flocculated with cationic polyacrylamide (CPAM) were...

Optimizing Sludge Dewatering by Using the KemiCond® Process ...

Optimizing Sludge Dewatering by Using the KemiCond® Process with the Bucher Hydraulic. Filter Press – Full ... The sludge produced at the plant must often be hauled to be used on farmlands or placed on ... In the biological tanks ferrous iron sulphate is added as a precipitant of phosphorous. Most part of this ferrous iron...

Molybdenum Removal Procedure

Scope: The following procedure can be used to remove or minimize the amount of molybdenum contained in water or ... The amount of ferric sulfate to be added is dependant on the amount of molybdate present, but a ... go to the municipal sewer, the dewatered (possibly dried) sludge will have to go to a land- fill. Ferric...

reduction of hydrous ferric oxide to a magnetic form with sodium ...

sludge dewatering and disposal present a major problem i n the lime treatment process. The sludge from a ... with coal mine drainage systems. salts of iron were used for the preparation of reagent solutions, and iron ... dissolved in the acidified ferric sulfate solution before alkalization with sodium hydroxide and subsequent.

Appendix I - Technical Memorandum 6 - Struvite and Chemical ...

0 To mitigate struvite formation in the anaerobic digesters, phosphorus removal in the sludge thickening ... I Ferric chloride is recommended for addition to the thickening and dewatering filtrate streams. When returned to ... polyphosphate is used by PAOs as energy source to take up simple soluble organics and store them.

Pressing Issues - WaterWorld

The Davidson plant differs from others in the region in that it employs ferric sulfate as a coagulant. As a result, the characteristics of the sludge it produced were also different - Johnson described it as “less biological, more chemical.” This had to be dealt with when specifying for the dewatering effort. “It was another hurdle for...

ISO Cation Polyacrylamide PAM for industry sludge dewatering

Quality Polyacrylamide Pam manufacturers & exporter - buy ISO Cation Polyacrylamide PAM for industry sludge dewatering from China manufacturer.

UV-Initiated Polymerization of Cationic Polyacrylamide: Synthesis ...

Oct 3, 2013 ... Floccultaion-coagulation process is a very effective way to improve its dewatering performance and achieve the purposes of sludge dewatering. Currently sludge conditioners used by municipal wastewater treatment plant are cationic polyacrylamides (CPAMs) [2]. CPAMs have many advantages including...

About - Chemifloc

Chemifloc was founded in 1981 and began manufacturing Mannich type Polyelectrolyte, used for dewatering wastewater sludge, in 1982. Also in that year it ... By this stage Chemifloc was supplying a wide range of chemicals to the water industry: Alum; Ferric Sulfate; Polyelectrolytes; Activated Carbon; Soda Ash etc.

View Paper

dewatering rate and decreases the final moisture content in the sludge, as compared to gravimetric dewatering. The EED ... Nations are supplied from the electrolyte solution (sodium sulfate solution) [3]. Powdered ion exchange resin, amorphous iron hydroxide and iron oxide were used as the simulated sludge in these tion.

National Wastewater Sludge Management Plan - Irish Water

Resources Plan, to establish whether the sludge will be discharged to sewer or dewatered on site. A separate plan is being developed in relation to recovery, reuse or disposal of waterworks sludge. Waterworks sludge contains coagulants such as aluminium or ferric sulphate used in the treatment of drinking water.

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