Pyrophoric iron sulfides formed as a result of oil cracking, when in contact with air oxygen, have the ability to self-ignite, as a result of which they are highly explosive at oil refining enterprises. It is known that oil refineries in Kazakhstan produce from 4 to 10 tons per year of this...

Modern agricultural production technologies based on the widespread use of pesticides and mineral fertilizers have largely solved the problem of providing the population with food, and at the same time have generated multiple ecological, medical and environmental problems, problems of environmentally friendly and biologically valuable food products, land rehabilitation, restoration of their fertility, etc. Therefore, the emergence of new classes of pesticides with different mechanisms of action, high selectivity and low toxicity for warm-blooded animals is very modern. Currently, the development and application of new plant protection products that are not toxic to humans and animals is of global importance. Priority is given to research aimed at creating plant protection products based on microorganisms and their metabolites, as well as the search for plant substances with potential pesticide activity. In this regard, the question arose of finding new safe fertilizers that can also be economically profitable for production on an industrial scale. One of the current trends in this industry is the use of green microalgae. In this regard, the purpose of our research is the possibility of cultivating green microalgae on phosphorus production waste. During the work, traditional and modern research methods in biology were used. As a result of the work, several problems can be solved, such as the disposal of industrial waste and the production of safe biological fertilizer.

Приведены результаты исследований по влиянию фосфорсодержащих отходов на организмы-гидробионты. При изучении воздействия фосфорсодержащих отходов (шлама и шлака) на гидробионты, в качестве тест-объектов использовались разные систематические категории гидробионтов: виды диатомовых водорослей: Phaeodactilum tricornutum, Sinedra ulna, Navicula gracilis, Amphora ovalis, Pinnularia viridis, одноклеточных зеленых водорослей: Scenedesmus guadricauda; Scenedesmus protuberans, Chlorococcum sp ., Chlorella vulgaris, цианобактерий Oscillatoria limosa, простейших: Amoeba proteus, Amoeba limax, Euglypha acanthophora, Paramecium aurelia, Paramecium caudatum, Paramecium putrinum, Paramecium omrelia, Paramecium multinucleus, Stylonychia mytilus, Vorticella convallaria, беспозвоночных: Colpoda steinii, Rotatoria, Calldina, Aeolosoma, Nematoda. Результаты биотестирования проб фосфорсодержащих отходов показали, что токсическое влияние на планктонные и бентосные организмы зависит от количественно-качественных параметров фосфорсодержащих отходов. Установлено, что 1,0 % концентрация фосфорсодержащих шлаков и шламов, оказалась не токсичной, дальнейшее увеличение концентрации отходов до 10,0% оказывает остро токсическое действие. При этом, фосфорсодержащий шлам оказался более токсичным, чем шлак. Выявлены индикаторные виды: Synedra ulna, Amphora ovalis, Rotatoria, Calldina sp., которые элиминируются из состава гидробиоценоза.