Systems and methods for intensive recirculating aquaculture are provided herein. An example system includes water sourced from a first segment of a saline aquifer, a recirculating aquaculture system receiving the sourced water and producing discharge water, and a water discharge point located within a second segment of the saline aquifer disposed below the first segment of the saline aquifer.

A method and system is provided for treating waste generated from manufacturing operations including at least one of Printed Circuit Boards Fabrication (PCB FAB), General Metal Finishing (GMF), semiconductors manufacturing, chemical milling, and Physical Vapour Deposition (PVD). The method and system are used to create zero liquid discharge recycling.

Methods and systems are provided for recovering an organic solvent from a waste sludge generated during formation of a polyarylene sulfide. Methods include combining the waste sludge with an anti-solvent to create a dispersion, which includes a solid phase that includes a substantial portion of the impurities of the polyarylene sulfide formation and a liquid phase that contains the anti-solvent and organic solvent employed during formation of the polyarylene sulfide. The liquid phase is separated from the solid phase and then subjected to a distillation process to separate the organic solvent from the anti-solvent. Methods can also include forming the polyarylene sulfide by a polymerization process and thereafter purifying a slurry of the polyarylene sulfide. A liquid washing product is formed as a result of the purification process, which can be subjected to a distillation process that forms an organic solvent-rich stream and the waste sludge.

This invention is a novel method to thermally process wet WWTP sludges, including biosolids, so that they can be classified. Wet biosolids or other WWTP sludges are passed through the heating zones of one or more solar thermal systems so that the sludges are heated to a target temperature to meet the requirements for U.S. Environmental Protection Agency classification. Various catalysts are provided before the sludges enter the heating zone and within the heating zone to optimize the treatment of the sludges.

In the invention, a sludge treatment technology adopting flocculation-horizontal drain board vacuum preloading combining multi-layer sealed geotextile bag is disclosed, which comprises sealed geotextile bags and a geomembrane for sludge grouting and filling. The sealed geotextile bag and the geomembrane have two splicing modes, one is to place a layer of geomembrane inside and close to the inner side of the sealed geomembrane; the other is to wrap and seal the outside of the geotextile with geomembrane. A horizontal drainage system for vacuum drainage is set inside the sealed geotextile bag, with one end of the horizontal drain board being connected to a vacuum drainage pipe, and the drainage pipe passes through the sealed geotextile bag via a flange and is connected to the vacuum pump used for pumping the water in the sealed geotextile bag. Sludge includes engineering waste mud, river sludge and industrial sludge. A horizontal drainage system is added inside the sealed geotextile bag and combining with flocculant for sludge dewatering, and the sealed geotextile bag can be stacked in several layers to form a stacking effect on the lower structure through the self weight of the upper layer, thus making the drainage effect faster and the dewatering efficiency higher.

In the invention, a sludge treatment technology adopting flocculation-horizontal drain board vacuum preloading combining multi-layer sealed geotextile bag is disclosed, which comprises sealed geotextile bags and a geomembrane for sludge grouting and filling. The sealed geotextile bag and the geomembrane have two splicing modes, one is to place a layer of geomembrane inside and close to the inner side of the sealed geomembrane; the other is to wrap and seal the outside of the geotextile with geomembrane. A horizontal drainage system for vacuum drainage is set inside the sealed geotextile bag, with one end of the horizontal drain board being connected to a vacuum drainage pipe, and the drainage pipe passes through the sealed geotextile bag via a flange and is connected to the vacuum pump used for pumping the water in the sealed geotextile bag. Sludge includes engineering waste mud, river sludge and industrial sludge. A horizontal drainage system is added inside the sealed geotextile bag and combining with flocculant for sludge dewatering, and the sealed geotextile bag can be stacked in several layers to form a stacking effect on the lower structure through the self weight of the upper layer, thus making the drainage effect faster and the dewatering efficiency higher.

Disclosed is a rake-free thickening device including driving area. The device includes a feed assembly, a diversion assembly and a clean coal collection assembly. The clean coal collection assembly includes a driving area. The diversion assembly includes a central tank. Slime water passes through the feed assembly and flows with a medicament from an upper part of the central tank to a middle of the central tank, and then diffuses around. Bubbles carry the fine slime up after reacting. The driving zone drives the dispersed bubbles to a defoaming zone located in the middle of the central tank. The slime water in the central tank flows through the central tank after defoaming. With the continuously filling of slime water, the slime water above the central tank overflows the central tank to the clean coal collection assembly within the diversion and settlement area.

Disclosed is a rake-free thickening device including driving area. The device includes a feed assembly, a diversion assembly and a clean coal collection assembly. The clean coal collection assembly includes a driving area. The diversion assembly includes a central tank. Slime water passes through the feed assembly and flows with a medicament from an upper part of the central tank to a middle of the central tank, and then diffuses around. Bubbles carry the fine slime up after reacting. The driving zone drives the dispersed bubbles to a defoaming zone located in the middle of the central tank. The slime water in the central tank flows through the central tank after defoaming. With the continuously filling of slime water, the slime water above the central tank overflows the central tank to the clean coal collection assembly within the diversion and settlement area.

The present Invention relates to a new and novel process for treatment of wastewater that combines treatment methods that use Ballast Material (BM), Hydrothermal Carbonization (HTC), Hydrodynamic Cavitation (HDC), Probiotics (PB), acid, and Bio-Adsorbents (BA) to replace biological treatment of wastewater, specifically Activated Sludge Technology (AST).

The present Invention relates to a new and novel process for treatment of wastewater that combines treatment methods that use Ballast Material (BM), Hydrothermal Carbonization (HTC), Hydrodynamic Cavitation (HDC), Probiotics (PB), acid, and Bio-Adsorbents (BA) to replace biological treatment of wastewater, specifically Activated Sludge Technology (AST).