About Us

MINEVIK Machinery is a leading and pioneering enterprise with the most advanced international level in R&D, manufacturing and selling of large-scale crushing & screening plants and beneficiation plants.

large-scale crushing & screening plants and beneficiation plants.

All of our equipment have got ISO international quality system certification, European Union CE certification and Russian GOST certification.

  • In central China-Zhengzhou, covering 140 thousand square meters
  • Win-win cooperation and create more value to customers
  • Exported large quantities and high-end mobile crushing plant and milling equipments to Russia, Kazakhstan, Indonesia, Ecuador, South Africa, Nigeria, Turkey more than 100 countries .

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Our Products

AS a leading global manufacturer of crushing and milling equipment, we offer including quarry, aggregate, grinding production and complete stone crushing plant. We also supply individual crushers and mills as well as spare parts of them.

Services

Our goal is to guarantee the excellent operation equipment with high safety for our customers and minimize the downtime of the machine by predictive maintenance. Kefid service and original accessories can be 100% trusted at the time of maintenance.

SERVICE AND SUPPORT

Minevik service and original accessories can be 100% trusted at the time of maintenance.

ACCESSORIES CENTER

striving to enable customers to get the parts in the nearest place.

SALES MARKET

Our sales market is spread all over more than 100 countries and regions

tannery wastewater removal

Tannery wastewater: Organic load and sulfide removal

However, these authors used a tannery wastewater from a secondary clarifier with an average initial COD of 544 mg O 2 L −1, much lower than the value observed in the effluent utilized in this study, 30 g O 2 L −1. This explains the much higher SCC (92.6 C mg

REMOVAL OF CHEMICAL OXYGEN DEMAND FROM

The aim of this work is to remove of COD from tannery wastewater by using one of the most efficient advanced wastewater treatment, the Fenton reaction. The parameters influencing the COD removal

Removal and Recovery of Sulfide from Tannery Wastewater

tannery wastewater is the coagulation of the solubilized proteins which could be removed by secondary sedimentation. Their removal will result in a size- able reduction of the pollution load and the related sewer surcharge. This report is submitted in fulfillment of Grant No. 12120 EPC by

Removal and Recovery of Sulfide From Tannery Wastewater

The hydrogen sulfide liberated from the wastewater is carried by air stream to an absorption tower where is is absorbed in recirculating caustic soda until a desired sodium sulfide concentration is achieved. The sodium sulfide is then reused in the tannery's unhairing process. Quantitative removal and recovery of the sulfides is accomplished

Tannery Waste Water Treatment: A Review

This paper presents a chromium recovery and reuse process that stabilizes the ash resulting from a thermal treatment system by removing all the soluble chrome, as well as a tannery waste water

Evaluation and Characterization of Tannery Wastewater

tannery wastewater from different tanning processes gave a number of conclusions. The results indicate that the wastewaters from the tanneries do not satisfy the legal ranges of selected parameters discharge to inland water and to sewer. Index Terms — Alkalinity, Acidity, COD, BOD, Tannery wastewater, Sulfides, Chlorides I.

Treatment of complex tannery wastewater with Paques

11/04/2012· The leather is both produced and specially finished at the Royal Dutch Tannery. Hulshof outsourced their wastewater treatment to Waterstromen BV in 2001. A new effluent treatment plant was

Evaluation and Characterization of Tannery Wastewater

tannery wastewater from different tanning processes gave a number of conclusions. The results indicate that the wastewaters from the tanneries do not satisfy the legal ranges of selected parameters discharge to inland water and to sewer. Index Terms — Alkalinity, Acidity, COD, BOD, Tannery wastewater, Sulfides, Chlorides I.

Treatment of tannery wastewater . susan SlideShare

24/01/2013· A.G Espantaleón et al.,(2003). Use of activated clays in the removal of dyes and surfactants from tannery waste waters. Applied Clay Science, 2003,24 (1-2), pp 105-1105. Lidia Szpyrkowicz, Santosh N. Kaul, Rao N. Neti. Tannery wastewater treatment by electro-oxidation coupled with a biological process. Journal of Applied Electrochemistry (2005

Removing contaminants from tannery wastewater by

The removal of Cr, sulfates and Chemical Oxygen Demand (COD) from industrial tannery wastewater by chemical precipitation was carried out using Calcium oxide (CaO) and Calcium hydroxide (Ca(OH) 2).Different doses of alkalis, ranging from deficiency to excess hydroxyl species over the stoichiometric necessary, were used to remove theoretically the 100% of Cr (0.3-3.2 g alkali/g Cr 3+).

Treatment of Tannery

3.1 Wastewater treatment Tanning industry is one of the oldest industries of the world and the problem of treatment and disposal of these wastes is probably as old as the industry itself. Tanneries wastewater effluent is treated in many different ways. There are situations in which an individual tannery applies all

Biological treatment of tannery wastewater by using salt

29/04/2008· High salinity (1–10% w/v) of tannery wastewater makes it difficult to be treated by conventional biological treatment. Salt tolerant microbes can adapt to these saline conditions and degrade the organics in saline wastewater. Four salt tolerant bacterial strains isolated from marine and tannery saline wastewater samples were identified as Pseudomonas aeruginosa, Bacillus flexus

Tannery Wastewater (Water and Wastewater) Articles

Present study dealt the removal of Cr(VI) in a tannery industry wastewater using rice husk silica powder as an adsorbent.The experimental investigations have been carried out by using rice husk silica powder for different adsorption dosage, different contact time and different pH against the initial Cr(VI) concentration of 292 mg/L. The maximum

Biological Treatment of Tannery Wastewater A Review

Chromium removal: The tannery wastewater with increasing chromium concentrations, caused by poor wastewater management with an average value in the influent was around 2.673±0.32 to 3.268±0.73 mg L-1 Cr. Investigations are focused on identification of the factors affecting the process performance (Banas et al., 1999).

Removal of Chromium from a Tannery Wastewater by Using a

Abstract—This study investigates the applicability of maghemite nanoparticles (MNPs) for the removal of total chromium (TCr) from the tannery wastewater (TWW). The MNPs of 122 nm were synthesized using a co-precipitation

Tannery Wastewater Treatment | Beckart Environmental

For Tannery Wastewater Treatment, Turn to Beckart Environmental When it comes to tannery wastewater treatment, Beckart Environmental knows what works. We have served a wide variety of businesses in this field and are ready to put our knowledge to use by helping you treat your wastewater in an efficient fashion.

Pollutant Removal from Wastewater at Different Stages of

The removal of chemical oxygen demand (COD), total organic carbon (TOC), turbidity, and chromium content from tannery wastewater at different stages of the process was experimentally investigated using electrocoagulation (EC) with iron and aluminium electrodes. In the EC of the beamhouse wastewater (S1), the effects of initial pH and current density were analyzed and electrical energy

Tannery Wastewater Treatment | Beckart Environmental

For Tannery Wastewater Treatment, Turn to Beckart Environmental When it comes to tannery wastewater treatment, Beckart Environmental knows what works. We have served a wide variety of businesses in this field and are ready to put our knowledge to use by helping you treat your wastewater in an efficient fashion.

Bioaccumulation of Chromium from Tannery Wastewater:

In this study, the removal of chromium from tannery effluent has been carried out using abundantly available brown seaweed Sargassum wightii. Simulated chrome tanning solution was used for the standardization of experimental trials. Various factors influencing the uptake of chromium, viz., quantity of seaweed, concentrations of chromium, pH of the chrome-bearing wastewater, and duration of

Utilization of tannery wastewater for biofuel production

30/01/2020· Tannery wastewater. Tannery wastewater was obtained from a treatment plant for tanneries wastewater located in east of Guannan economic development zone, Lianyungang City, Jiangsu Province, China.

Continuous removal of chromium from tannery wastewater

The present study deals with the removal of Cr(VI) and reduction of COD of synthetic tannery wastewater as well as original tannery wastewater by activated sludge reactor and determination of bio-kinetic parameters which are valuable in designing and scaling up of activated sludge reactor. Experimental Procedure Organism

Case Studies on Biological Treatment of Tannery Effluents

an ASP-based plant, receives 1.9 MLD of tannery waste-water18 against a design flow of 2.15 MLD. As in previous cases, preliminary treatment of this wastewater for the removal of grit and Cr is performed in the tannery itself. A process flow sheet for this CETP is shown in Figure 2. Table 1 presents a comparative overview of the two CETPs.

Chemical precipitation method for chromium removal and its

Chromium removal Chromium recovery Chemical precipitation Tannery wastewater Most of the tanneries in Ethiopia (90%) do not treat and very few (10%) partially treat their effluent before discharging it into the receiving water bodies. The untreated tannery effluent causes tremendous pollution of

CHROMIUM RECOVERY FROM TANNERY WASTEWATER USING

Chromium, Tannery, Heavy Metals, Industrial Wastewater, Product Development PRESENTER PROFILE Aaron Low is the Process Engineer at Ligar LP based at the Ruakura Research Campus in Hamilton. Ligar produces materials capable of removing heavy metals, pesticides, flavor

Chromium removal from tannery wastewater using

Subsequent experiments, carried out using tannery wastewater, were performed to determine whether chromium could be recovered from the sludge. Finally, different amounts of ground shrimp shells from fi shery waste were used to remove chromium from tannery wastewater. The results showed that chromium removal was mediated primarily by adsorption

Tannery Wastewater Treatment

Tannery Wastewater Treatment • Chromium removal is necessary before biological treatment. • Trickling filter can also be used. • Anaerobic filter: 90% COD and 91 to 97% BOD removal can be obtained at HRT of 12 h. • Low cost treatment such as oxidation pond, anaerobic lagoons followed by aerated lagoon can be used. Treatment of Tannery waste Raw wastewater Screen Screening

Pollutants in tannery Effluent | Leather Panel

Based on new data and requests from interested users, the revised second edition of the paper Pollutants in tannery effluents was prepared drawing on technical inputs by J. Buljan, I. Král, M. Bosnić, R. Daniels. This training material is primarily intended to meet the needs of tanners and people of different profiles associated with environmental protection in the leather industry in

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