Water quality purification is a phased management method for water management, while ecological correction is a long-term method for maintaining water quality. Most water quality purification skills refer to sewage treatment skills for water body correction, such as A2O, flocculation sedimentation, biological filters, artificial wetlands, ecological floating islands, and stable ponds, which have been used in practical engineering. However, there has not yet been a set of mature and feasible detailed skill paths for water quality purification of black and odorous water bodies, which is also a problem encountered in the current management process of black and odorous water bodies.

The management of black and odorous water pollution is a difficult point in the water pollution management industry. Overall, the management of black and odorous water pollution is a long-term task, with multiple causes and varying conditions of water pollution, making it difficult to control. In addition, there is no mature and effective set of skills, so the effectiveness is not very significant. Together, there are many departments involved in the management of black and odorous water pollution, with huge construction and operation costs, minimal economic returns, and a tendency for accumulation to decline, leading to a phenomenon of heavy construction, light operation, and rebound of black and odorous water bodies.

Source control, pollution interception, and endogenous management are the foundation and prerequisite for the management of black and odorous water bodies. Source control and pollution interception mainly involve the construction and renovation of sewage pipelines along the water body, incorporating sewage interception into the sewage collection and treatment system, or using non-point source pollution control skills to reduce pollutants from the source and directly discharge them into the water body. This is also the focus and difficulty of black and odorous water management. Currently, most internal management skills rely on manual/mechanical dredging methods to eliminate pollution.

The Water Pollution Management Committee reviewed the management policies and their completion status, as well as the development status of management skills, in the five categories of black and odorous water pollution management, rural sewage management, sludge treatment, urban sewage treatment plant upgrading and renovation, and industrial cluster area sewage management.

Deodorants are products extracted from pure plants that integrate air purification, deodorization, antibacterial properties, and external cleaning. Bacterial reproduction produces a lot of harmful odor gases such as ammonia, hydrogen sulfide, amines, aromatics, alcohols, organic acids, indoles, etc., which can effectively differentiate any odor produced by organic matter fermentation, achieving the function of cleaning and purifying the air. It has the characteristics of non irritating air antibacterial properties. This product can also accelerate the rapid differentiation of organic matter and reduce its volume. Long term use will have a more significant effect.

Active water circulation and clear water replenishment mainly rely on methods such as urban recycled water and clean surface water as supplementary water sources for managing water bodies, to increase water mobility. This type of treatment skill has a significant effect, but it requires setting up pumping stations, laying pipelines, etc., which is difficult to construct and operate. In the process of water diversion, it is necessary to avoid introducing new sources of pollution.

The management of black and odorous water pollution should be based on the actual situation of each black and odorous water body, and feasible and economically reasonable skills should be selected and implemented in detail according to the causes of pollution and management policies. It is not advisable to choose uniform and standardized skills, but should emphasize "one water, one plan". In addition, in order to ensure the systematic and effective management of black and odorous water pollution, it is necessary to coordinate and consider the surrounding sewage treatment plants, water supply and drainage networks, watershed water environment, and other aspects, and coordinate the management of urban water environment to maintain long-term compliance with water quality standards.

The article originates from a deodorant manufacturer http://www.scneng.com.hk