An apparatus for reducing the water content of waste water sludge includes a column for receiving waste water sludge, an outlet at a lower end of the column, a first closure for closing the outlet of the column, a controller for controlling the opening and closing of the closure. The controller is adapted to open and close the first closure to periodically discharge amounts of settled fines from the lower end of the column. A water outlet is adapted to receive water overflowing from an upper end of the column.

An industrial waste salt resourceful treatment method comprises the following steps: the industrial waste salt is sequentially subject to dissolving, chemical pre-purification, deep purification, organic matter concentration reduction, adsorption and oxidation decolorization and multi-effect evaporative crystallization to respectively obtain sodium sulfate, sodium chloride and sodium nitrate crystals; the crystallization temperature of sodium sulfate is in a range of 75° C. to 85° C.; the crystallization temperature of sodium chloride is in a range of 60 to 70° C.; and the crystallization temperature of sodium nitrate is in a range of 45° C. to 55° C. An industrial waste salt resourceful treatment device is further provided.

An organic waste collection apparatus includes a box, a conveying device, a separation device, a squeezing device, a heat shrink device and a recycling device arranged at an upper part of the box for separating a waste bag; a crushing device and a residue treatment device arranged at a lower part of the box for crushing and collecting organic waste; a central control device and a negative pressure purification device arranged in the middle of the box. In the resent disclosure, the waste bags are separated and collected separately, the waste is crushed and stored and transported in the form of residue, or the residue is further performed dry-wet separation, oil-water separation to collect oil, which can realize the safe and efficient treatment of organic waste.

An apparatus for dewatering sludge comprises a tank having an internal space divided by a dividing wall into an intake chamber and an extract chamber, an intake pipe connected to the intake chamber by an intake valve, a discharge pipe connected to the extract chamber by a discharge valve, and a transfer pipe providing fluid communication between the intake chamber and the extract chamber. The transfer pipe has first opening near the bottom of the intake chamber, and a second opening near the top of the extract chamber. A pump selectively creates positive and negative pressure within the intake chamber. A screen is positioned within the extract chamber between the second opening of the transfer pipe and the discharge pipe.

An apparatus for dewatering sludge comprises a tank having an internal space divided by a dividing wall into an intake chamber and an extract chamber, an intake pipe connected to the intake chamber by an intake valve, a discharge pipe connected to the extract chamber by a discharge valve, and a transfer pipe providing fluid communication between the intake chamber and the extract chamber. The transfer pipe has first opening near the bottom of the intake chamber, and a second opening near the top of the extract chamber. A pump selectively creates positive and negative pressure within the intake chamber. A screen is positioned within the extract chamber between the second opening of the transfer pipe and the discharge pipe.

Disclosed are a multi-stage gravity-type sludge drying apparatus and a sludge drying method using the same. The drying apparatus includes: a dryer, a preheater, a steam generator, a filter, a steam or water separation buffer tank, a steam compressor, a cooling water pump, a sealed discharge device, pipes and valves. The dryer includes several indirect dryer modules. The transportation of sludge in the dryer is achieved by gravity. The inner cavity of respective indirect dryers is filled with high-temperature steam to dry the sludge by indirect heating. The condensate water in the cavity is recycled and fed into the preheater to perform preheating and impurity removal on the wet sludge. The secondary steam generated in the dryer is filtered, compressed and overheated to become a new heat source for indirect heating in the cavity and convection drying at a bottom of the dryer.

Disclosed are a multi-stage gravity-type sludge drying apparatus and a sludge drying method using the same. The drying apparatus includes: a dryer, a preheater, a steam generator, a filter, a steam or water separation buffer tank, a steam compressor, a cooling water pump, a sealed discharge device, pipes and valves. The dryer includes several indirect dryer modules. The transportation of sludge in the dryer is achieved by gravity. The inner cavity of respective indirect dryers is filled with high-temperature steam to dry the sludge by indirect heating. The condensate water in the cavity is recycled and fed into the preheater to perform preheating and impurity removal on the wet sludge. The secondary steam generated in the dryer is filtered, compressed and overheated to become a new heat source for indirect heating in the cavity and convection drying at a bottom of the dryer.

A system includes: an intake tube operably connected to a power plant, the intake tube configured to transport exhaust from the power plant; a drill configured to create a hole in the side of the plant usable to receive exhaust generated by the plant, the drill configured to remain in place and function as the intake tube, the system further comprising a cooling tube operably connected to the intake tube, the cooling tube configured to receive the exhaust from the intake tube; a U-shaped tube operably connected to the cooling tube, the U-shaped tube comprising a mister configured to generate a mist; and a vacuum tube fan operably connected to the U-shaped tube, the mister configured to cause the cooled exhaust and the heated liquid to bond so as to create a sludge, the sludge falling to a bottom of the system, the sludge being removed from the system.

A system includes: an intake tube operably connected to a power plant, the intake tube configured to transport exhaust from the power plant; a drill configured to create a hole in the side of the plant usable to receive exhaust generated by the plant, the drill configured to remain in place and function as the intake tube, the system further comprising a cooling tube operably connected to the intake tube, the cooling tube configured to receive the exhaust from the intake tube; a U-shaped tube operably connected to the cooling tube, the U-shaped tube comprising a mister configured to generate a mist; and a vacuum tube fan operably connected to the U-shaped tube, the mister configured to cause the cooled exhaust and the heated liquid to bond so as to create a sludge, the sludge falling to a bottom of the system, the sludge being removed from the system.

A sieve panel and related methods of construction for dewater slurries with shaped-wire elements that have a variable tilt arrangement along the sieve panel. Each of the plurality of shaped-wire elements can be selectively oriented when mounted to a support member to define a desired tilt angle of the shaped-wire element relative to the support members Tilt angle can be selectively varied between an upper end and a lower end of the sieve panel to enhance dewatering characteristics of the sieve panel. The sieve panel can be fabricated such that an upper portion and a lower portion are essentially mirror images of each other such that the sieve panel can be flipped after leading edges of the individual screening elements have suffered wear leading to a degradation in dewatering performance. By flipping the sieve panel, an effective service life of the sieve panel can be essentially doubled.