Abstract: The present invention discloses a disposable multi-stage cigarette holder filter apparatus, relates to the technical field of production of filter cigarette holders, and solves the problems of high cost, complex preparation process and poor filter effect of existing disposable filter cigarette holders. A composite filter rod, a filter layer, a cooling layer, a smoke dispersing layer, a cigarette holder connector and a cigarette body are sequentially connected from bottom to top into a cylinder structure; an outer packaging paper is arranged outside the cylinder structure; a plurality of air inlets are formed in a surface of the outer packaging paper corresponding to the smoke dispersing layer; and a filter capsule is arranged in the filter layer. The disposable multi-stage cigarette holder filter apparatus reduces the harm of tar and nicotine to smokers by introduction of air and multi-stage filtration, which uses mainly biomass materials wide in source as raw materials.

Abstract: Disclosed are a constructed wetland structure and methods for preparing and using a carbon source, which relate to the technical field of biological treatment of water pollutants, and solve the problems of poor uniformity, complexity, unsatisfactory effects and high operating costs in existing carbon source adding methods. The present disclosure includes a water inlet pond, a treatment unit, and a water storage pond, which communicate in sequence. In the treatment unit, plant straws and biochar are used to prepare a carbon source. By modifying the carbon source material, the carbon source is released stably. By arranging carbon source layers, under the action of a water flow, the uniformity of carbon source distribution is guaranteed. The carbon source is periodically cleaned and replaced. Carbon source material is a biomass material which features a wide source and low costs.

Abstract: Provided are an ecological slope anti-corrosion timber pile and a treatment device and method therefor, belonging to the field of ecological engineering. The device includes a gasification furnace, and first, second and third carbonization chambers, each internally provided with a main gas pipeline, and multiple rows of radially distributed branch gas pipes are vertically disposed thereon and provided with electronic igniters. Multiple rows of radially distributed timber piles are vertically inside the carbonization chambers and between the branch gas pipes. The gasification furnace is connected to the main gas pipeline of the first carbonization chamber through a gas booster pump. The first carbonization chamber is connected to an air blower, the first and second carbonization chambers are connected through a joint pipe, the second and third carbonization chambers are connected through a pipeline, and the third carbonization chamber is connected to the gasification furnace through a gas delivery pipe.

Abstract: Provided are an ecological slope anti-corrosion timber pile and a treatment device and method therefor, belonging to the field of ecological engineering. The device includes a gasification furnace, and first, second and third carbonization chambers, each internally provided with a main gas pipeline, and multiple rows of radially distributed branch gas pipes are vertically disposed thereon and provided with electronic igniters. Multiple rows of radially distributed timber piles are vertically inside the carbonization chambers and between the branch gas pipes. The gasification furnace is connected to the main gas pipeline of the first carbonization chamber through a gas booster pump. The first carbonization chamber is connected to an air blower, the first and second carbonization chambers are connected through a joint pipe, the second and third carbonization chambers are connected through a pipeline, and the third carbonization chamber is connected to the gasification furnace through a gas delivery pipe.