Energy-Efficient Sludge Drying Processing Plant

1) Waste should be avoided. To a certain extent it is possible to avoid general household waste, however "municipal sewage sludge" cannot be "avoided", as required by this guideline.
2) If waste cannot be avoided, the priority should be to utilise the substances it contains. In the case of municipal sewage sludge, the only practical uses are in the agricultural sector - as organic fertiliser to improve the soil and for recultivation. If municipal sewage sludge is to be used in this sector
however, it must meet the following two criteria:
· The sludge must meet the minimum requirements for agricultural use, i.e. in practical terms the heavy metal concentrations and also the organic pollutants, such as dioxines and furanes, must not exceed certain maximum levels.
· A market should be available for the "organic fertiliser", i.e. there must be a demand for the substance in the immediate vicinity or a demand must be created for it. The main criterion here is that this demand be long-term, thus ensuring that there is a means of disposal available for the waste. Those who know what havoc can be caused by false information being propagated on television or in the newspapers will hardly expect to
find a "reliable long-term solution".
If a truly safe means of disposal by utilisation is to be found, the best possible scenario can only be a combination of "material utilisation" for as long as possible and "thermal use", as required in the next step described below.
3) If the "material utilisation" described above is not possible, the law requires "thermal use". This does not mean that the organic waste should be destroyed by heat, but that it should be processed to make solid fuel and then used in place of a primary energy source. The idea behind this regulation is to reduce CO2 emissions.
4) The final stage for organic waste is dumping, but not until the organic content has been reduced to less than 5%, which is generally when it has been well incinerated. When dealing with municipal sewage sludge, the regulations clearly require that the sludge be dried after dewatering. Relatively safe use in agriculture and also proper thermal use is only possible if the sludge has been dried, normally to a dry solids content of 90 to 95%.

Technical performance of Solid waste drying machine for sale:

Hengyang Industry is an Chinese Company based in Zhengzhou city that manufactures, on proprietary technology, plants and equipment for waste recycling and recovery with energy production, material recovery or production of finished goods.

Innovation, R&D, passionate and skilled team along with the customer satisfaction have always been the success of Hengyang and they still are the peculiarities of our Company. Besides the historical Hengyang equipment, like single and double shafts shredders, Crushing machine, briquetting machines, separators, squeezers and centrifuges, the Company offers a wide range of turn-key plants, among which:

• briquetting and pelletizing plants
• shredding plants
• Waste Sorting Plants
• Bio-fuel Plants
• Waste to Power Recycling Plants
• Mining Plants
• OEM Equipments
……..
Hengyang is able to develop customized solutions too.
Designed, constructed and assembled by the same Hengyang

The Company policy focuses on product quality: robustness and functionality of the machines that maintain their value over time.
The ability to challenge ideas and concepts and to interact with partners worldwide has allowed and still allows Hengyang to stay highly competitive and to be an ideal partner for the world market.