What is the technical professional sludge treatment process

2023-03-15

In view of the current market status of sludge treatment and the characteristics of sludge in various places, Dingli has conducted technical research and practice many times, and carefully built a new generation of sludge drum drying systems.

Sludge is the product of sewage treatment, which is an extremely complex heterogeneous body composed of organic debris, bacterial cells, inorganic particles, colloids, etc. The main characteristics of sludge are high water content (up to 99%), high content of organic matter, easy to rot and smell, and the particles finer, the specific gravity is smaller, and it is in a colloidal liquid state. It is a thick substance between liquid and solid, which can be transported by pump, but it is difficult to separate solid and liquid by sedimentation. The concentration of suspended solids is generally 1% to 10%, and the concentration below this level is often called mud. Due to the different sources of sludge and different water treatment methods, the properties of the sludge produced are different. There are many types of sludge, and the classification is more complicated. Generally, it can be classified according to the following methods.

sludge dryer

Sludge dewatering is an important part of the whole sludge treatment process, its purpose is to enrich solids, reduce the volume of sludge, and create conditions for the final disposal of sludge. Sludge dewatering and drying include natural dehydration, mechanical dehydration, and heat treatment drying.

After the sludge is concentrated and digested, it still has a moisture content of 95%~97%, and it is easy to be corrupted and smelly. The sludge needs to be dried and dehydrated. Commonly used dehydration methods include natural drying and mechanical dehydration.

In order to further reduce the moisture content (75%) of the dewatered sludge, a drying process is adopted. After drying, the moisture content can be reduced to about 20%. In addition to the simplest drying process, heat drying technology is commonly used. Sludge drying can completely kill pathogenic bacteria and stabilize the sludge. However, a large number of waste gas purification costs and operating costs generated during the drying process are issues that must be considered when using the drying process.

The internal structure of the Dingli sludge dryer strengthens the cleaning and heat conduction of dispersed materials, eliminates the adhesion phenomenon on the inner wall of the cylinder, and has stronger adaptability to the moisture and viscosity of materials. The unique bulk sludge delayed drying technology is adopted to ensure the uniformity of coal slime drying.

Dingli sludge dryer has strong overload resistance, large processing capacity, low fuel consumption, and low drying cost. The equipment technology is absolutely mature, the operation is stable, and the operation and maintenance are convenient. For more information, welcome to consult online.

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  • Djam***2023-05-25

    For bana peel dryer, Quantity to dry 80 -100 tons per day. Expected output moisture content is 15%

  • Ricca***2023-06-30

    essiccamento di 300-400 t/g di fanghi di carbonato di calcio al 20% di contenuto di H2O. proposta impianto dimensioni,costo essiccamento (costi diretti). Grazie

  • LOUIS***2023-07-16

    Will your equipment be able to dry out Fly Ash with 8% moisture content. Production Rate 10 tons an hour. What medium would you use for heat source?

  • Tamer***2023-08-28

    Please can you sent me the details and process cost of the Iron ore dryer. And the price of the machines

  • Fletc***2023-09-21

    I'm from Thailand. Please let me know if your dryer system will work for drying pineapple skins or mango pulp waste?

  • Musta***2023-10-15

    I would like to ask for a price quotetion for sand dryer, how much is the one which makes 30 tones per hour after reaching my country

  • JAYES***2023-11-23

    I want to know the price for the muncipal waste dryer and if you have a whole asssembly line to make Charcoal Briquette on a large scale

  • Esams***2023-12-11

    I Required baggase dryer for 8 ton per hours with 55% moisture.Please kindly send your best quotation and product specifications.Regards

  • Sameh***2024-01-04

    Good morning i'I am from Tunisia please can you send me the technical information and price of the sand dryer capacity 20 T/h diesel

  • Ramb***2024-01-21

    0.2 x 5 cap 15t/h, What will it cost me to have this size of Sand dryer? Please your quote is most needed

  • Abida***2024-01-25

    Hi, we are looking for coal dryer with 850 tons per day input. Please send me the cost of complete installation in Rajasthan India.

  • Visha***2024-02-03

    Silica sand dryer 20-30t/h production best price quotation manual oprater

  • Sebas***2024-02-08

    Can this dryer dry pine wood shavings? And if so at what capacity? My shavings are 80% wet and needs to come down to 8% or 10% moisture

  • Toufe***2024-02-10

    Informations about and how much is the coast to dry raw coal 1000 to 2000 tons per day

  • Paul S***2024-02-13

    Can you send me a quotation of the complete charcoal briquette production line. From crusher to dryer for a production capacity of 10 TPH

  • Jacob***2024-02-16

    I am interested in this plant equipment mainly to dry coffee grounds. Send me Coffee grounds drying machine video demonstration of DLGT1210 and DLGT 1412.

  • Asho***2024-02-18

    Information about machinery. Interested to buy this wood shavings drying & briquette plant.

  • Tejen***2024-02-20

    Pellet plant. 2.5 to 3 ton per hour, I want to setup our own biocoal and pellet plant In morena mp so I want to know about a price of machineries.

  • Ahmed***2024-02-23

    Dryer and granulation - We want to produce organic fertilizer using chicken waste and cow manure as well as lime kindly avail your best price of 10 / 30 tone capacity per hour

  • Natas***2024-02-27

    Coffee spent drying 55% to 25%, may I get the price of the Steam Tube Rotary Dryer model: DLSG1210, capacity 40 ton/day please.

  • Guill***2024-03-01

    Please me your quotation for a 2 tons/hr, and 4 tph capacitiy Rotary Drum Dryers for Wood Chips from medium-hard wood, with about 60% moisture content.

  • Ddsik***2024-03-02

    Need coal upgrade plant 500 tons per day. Please confirm how much sulphur can be reduced in our plant.

  • Johns***2024-03-04

    Do you have 5-10 ton/h capacity available and what is the price for the whole wood sawdust drying biochar plant including moulding machines and packaging

  • Ahmed***2024-03-06

    Please send cost of wood chips dryier and full information use in pakistan. Capacity 5-8 tons per hr.

  • Sulai***2024-03-10

    l need a Sludge Dryer for stp that can process about 200 tons per day. Please share all details with price.

  • Hamz***2024-03-15

    Hi I am a moroccan olive oil producer and I would need a quote for an olive pomace dryer with a capacity of 500T per day thank you i n advance for your help

  • Ajay P***2024-03-18

    I am interested to buy biomass drying &pellet plant. Can I use agricultural waste too in your machine?

  • Jitend***2024-03-22

    Rice Husk Biochar Manufacturing Plant. Capacity: 1 ton / hour (24 tons per day) Price Quotation Shipping to India.

  • Pawan***2024-03-25

    Silica sand dryer, Capacity 50 tph, Can I get dimension and price please.

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